Adhesives and sealants are widely used in different building and construction applications from tiling to timber lamination and pipeline bonding.

Non-slump fiberglass glue for bead application

Strong and versatile adhesive for fiberglass and fiberglass-reinforced polymer substrates

You are probably reading this because you need a specific adhesive for a specific application. Let’s go out on a limb here and guess you are looking for a non-slump adhesive that needs to be applied in the form of beads or lines.

There are a bunch of adhesives that can do that, but sometimes the process requires something a bit more refined. Which fiberglass adhesive will you pick for fiberglass or Glass Fiber Reinforced Polymer (GFRP) or Fiberglass-Reinforced Polymer substrates (FRP)? You’ll want something that has great adhesion to your materials and also gives you enough time for the assembly process. Sometimes you don’t want the initial tack to be too strong, nor do you want it to be too weak.

In some cases, the gel time must be variable too. We know of fiberglass glue that can be accommodated for a shorter or longer gel time, on prescription. Just so you get an adhesive that
truly fits your particular production method.

When you are looking for a fiberglass glue with a number of specific properties for substrates, the search may feel overwhelming. Contact us for advice regarding your adhesive requirements.

Fiberglass glue on your application terms

The most commonly used form of fiberglass adhesive is a mixture of two components. Depending on the intended usage, the components can be altered to perform certain tasks. The new properties depend on the exact combination and chemistry of both components, as well as their mixing ratio.

The end result might bond with a weaker or stronger force. A typical glue for this type of application might bond with >2000 psi to metal substrates, which is sufficient for many applications. Stronger bonding isn’t always necessary. It could even affect the total price of the assembled product, due to more expensive adhesive components, without further improving its final quality. It’s a balancing act, really, to get it just right.

When a production line requires an adhesive to be applied as dotted or lined beads, there’s a number of properties that may be crucial to that particular application. Gel time is one we mentioned earlier, but the bead formation must also be precise.

One reason for that is the glue may be applied in a very specific location, without running of your material. That could cause a number of issues later on. You also want the bead to have nonslump properties, i.e., to stay more or less in the shape and height it has been applied, long enough for the bonding action to take place. You don’t want to worry about sagging or dripping.

Also great for general assembly applications

Finally, it is worth mentioning that there is a green trend for fiberglass adhesives. As in ‘environmentally friendly’. Some are based on natural castor oil and contain no hazardous solvents. This makes it a modern and responsible alternative to many other adhesives.

Maybe this article has made you think about your current fiberglass substrate adhesive. You might consider a new and innovative version as a replacement for your current glue.

When it comes to fiberglass substrates, there are different materials of various properties that spring to mind. Like true fiberglass, FRP and GFRP substrates can often be bonded with the same adhesive.

But some of these adhesives can also gladly bond with polypropylene, steel, and aluminum. It makes sense to check out all your glueing needs, before you decide which adhesive you’re going to use. Properties aside, there may be more economical choices for certain applications.

We know where you can find the best high-tech sealants and adhesives for your specialized application. Contact us for more information.

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When you are trying to pick the perfect roofing adhesive (PSA) for your non-woven reinforced polymeric membranes, you quickly run into a number of challenges. The variety is huge (EPDM, SBS, APP, TPS, etc.), and the number of adhesives is even bigger. As technology advances, the number of possible combinations grows.

Black EPDM roofing membrane on flat domestic roof
Black EPDM roofing membrane on flat domestic roof.

You may be used to a certain adhesive, but are you sure that it is the best for your roofing situation? Think of the costs that come with unhappy customers. Do you want to risk using the wrong adhesive? 

Let us help you find the proper EPDM adhesive for your next project and contact us.

Why using the proper adhesive matters

Every type of polymeric membrane has different properties. You need to find a matching roofing glue with the right characteristics. When these are compatible, the job becomes easier and more satisfying. What’s more, the roofing should last for decades. Happy customers make every project great, right?

Roofing adhesive requirements

You are looking for proper, effortless adhesion, while obtaining watertight sheet-to-sheet sealing. Some membranes come with their own self-adhesive border; some just come with a roll of tape.

On both steep and level roofs, applying a coating of roofing glue across the entire membrane surface can have a number of advantages. To begin with, you get to decide what type of EPDM adhesive is used, where it is applied, and how thick. Another is that you’ll know the roofing adhesive used will be new, at the top of its strength and sealing capabilities.

White PVC roofing membrane on flat industrial roof
White PVC roofing membrane on flat industrial roof.

Now, you’ll want to be sure that this really is the best roofing adhesive for your particular project. It almost takes a degree in chemistry nowadays to understand which one to pick. Don’t worry, we got your covered.

Roofing adhesive requirements

The perfect roofing glue must be compatible with your specific roofing membrane. You’ll want to make a combination where you have all of these benefits:

  • High peel on various polymeric materials
  • High SAFT (Shear Adhesion Failure Temperature)
  • High UV-resistance
  • Broad service temperature range
  • Moderate or no change in performance due to ageing
  • Suitable viscosity and rheology for standard hot-melt coating equipment

How do I find the best adhesive for my project?

You care about your project, so you don’t just pick a random EPDM glue off a shelve. There is a huge variety of materials, processes and challenges to consider. Each combination will require careful analysis, to prevent you from ending up with a botched project.

Let us analyze your project and the materials you’re going to use, and you will receive expert advice on the best adhesive, specifically for your project.

Click here for the best way forward.

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cementitious types of grout for natural stone on a floor

How to choose the right type of grout for natural stone?

Natural stone tiling projects consist of several steps including laying the tiles, sealing them and grouting the gaps. In this article we take a closer look at the latter, as there are different types of grout for natural stone, and the choice is not always obvious. The purpose of grout is to help keep the tiles or stones in their place, create a watertight seam which prevents liquids from seeping to the adhesive layer and make up a supportive network throughout the tiled area.

When working with natural stone, the choice of grout should be based on several factors including the stone type, color of the stone and the gap width. Especially when tiling with naturally shaped natural stone, the gaps may be rather large, which requires a special grout.

Cementitious grout – sanded and unsanded

applying grout for natural stone with a trowel
Of the types of grout for natural stone, cementitious grout is the most common.

Cementitious grout is the oldest and most common grout for natural stone flooring. It is also suitable for grouting vertical tiling. The main ingredient of these types of grout is Portland cement which is accompanied by filler particles of different sizes, water retentive additives and color pigments. Sometimes adding a latex polymer can improve waterproof properties.

Cementitious grout is usually a powder which requires mixing with water prior to application. The water retentive additive prolongs the curing time of the grout allowing for longer processing time. The downside of cementitious grout is that the seams need frequent maintenance, as the structure remains somewhat porous. Typically the seams require sealing once in a year or two.

2 types of cementitious grout for natural stone

Cementitious grout exists in two types: sanded and unsanded. The choice between the two is often based on the width of the gaps that require filling and sealing.

  1. Unsanded
    Unsanded cementitious grout contains very fine mineral powder which makes the texture smooth. These are suitable for narrow seams as they are prone to shrinkage. The wider the seam, the more grout is needed and the more it shrinks causing the grout to crack easily.
  2. Sanded
    Sanded grout is ideal for large seams between natural stones. These types of grout for natural stone contain sand which makes the bonds stronger and prevents cracking. If sanded grout is applied to soft or glossy stone, the sand may scratch the surface. As a precaution, the compatibility of the grout and tile should always be tested on a sample.

Note that both of the types of cementitious grout may stain porous natural stone. Therefore, sealing the tiles, or applying grout release, is recommended 24 hours before grouting. The sealer should not be applied too soon after natural stone adhesive.

Epoxy grout – the best grout for natural stone tiles

Epoxy grout is strong, form impermeable seams and is resistant to staining. It could well be said that this is the best grout for natural stone. However, all the benefits have a price tag: epoxy grout is the most expensive type of grout for natural stone. It may, nonetheless, be worth the investment, as the seams do not require sealing – ever.

Epoxy grout is typically a two or three component system which consists of epoxy resin, silica fillers, hardener and color pigments. Mixing the resin and the hardener prior to application starts the chemical reaction resulting in curing. Epoxy grout has a rather short processing time making it slightly more difficult to apply than cementitious grouts.

Tip: to extend the processing time, divide the mixed grout to two containers: one to use right away and the other to keep in the freezer. The low temperature slows down the chemical reaction.

Cementitious epoxy grout

When Portland cement is added to epoxy grout, the result is a system with similar properties to those of cementitious grout. However, the epoxy improves the waterproof properties, makes the seams harder and stronger and reduces, but does not eliminate, the need for maintenance. As these seams are comparable to those created with cementitious grout, they must be sealed after the grout is applied.

Pre-mixed grout for commercial use

If the properties of epoxy grout are what your project requires, but the application process does not seem appealing, you might consider a pre-mixed system which is as strong as epoxy. Traditionally, pre-mixed grout is not the most ideal system for commercial applications which require certain certification and durability. However, the most innovative, even revolutionary systems are as strong as 2K epoxy grout and comply with standards such as ANSI 118.3, the American National Standard specifications for chemical resistant, water cleanable tile setting and grouting epoxy. In addition to compliance with ANSI 118.3, these pre-mixed grouting systems come with other benefits including:

  • Increased efficiency: as these systems do not need mixing, and they are fast and easy to apply thanks to their creamy consistency, efficiency can be significantly increased.
  • Versatility: the pre-mixed grout is suitable for interior and exterior use. It also works well with different tiles and surfaces. Therefore, it offers a wide range of possibilities as a grout for natural stone tiles.
  • Strength: some pre-mixed grout systems are just as strong as traditional epoxy grout even though they do not contain epoxy resin.
  • Chemical resistance: one of the main problems usually experienced with pre-mixed systems is poor chemical resistance. The new, revolutionary formulation, nonetheless, is resistant to a broad range of chemicals. Contact us for more information!
  • Low VOC: pre-mixed grout for tiles exists as environmentally friendly systems which have close to zero VOC value. The systems free of epoxy resin have a lower risk of allergic reaction.

More information on different types of grout for natural stone

Do you need more information on the different types of grout for natural stone? Are you looking for a solution for a specific project? Or would you like the challenge your current supplier? Contact us and let our experts find you the best possible grout for natural stone in your project.

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man laying tiles on natural stone tile adhesive

Flawless tiling with natural stone tile adhesive

Natural stone tiles are extremely attractive and create a special atmosphere, however, they are not the easiest to work with due to the delicate nature of natural stone tile. The most important factor to consider is the natural stone tile adhesive which initially determines the success of the tiling work. However, next to the right type of adhesive for tiles, other factors such as natural stone tile type, application method and grouting system also contribute to succesfull tiling.

Not only does the best tile adhesive guarantee great end result but also faster and easier application. When you choose for the most suitable natural stone tile adhesive for your project, you know what to expect from the result and your process gets topped up with some speed and efficiency!

Here you will learn about the different natural stone tile types, get infomation on substrates and suitable tile adhesive types, discover the different types of tile adhesive, and find out the difference between interior and exterior tile adhesive.

Consider the needs of natural stone when choosing an adhesive for tiles

When tiling with natural stone, there are a couple of factors that must be taken into account in order to achieve the best end result. Natural stone tile is not simply one type of tile, but the term covers all natural stone tiles ranging from limestone to marble and granite, each requiring a specific type of adhesive for tiles. The stone tile types can be divided into groups followingly:

  • Calcareous: includes all natural stone tile types that contain calcium carbonate such as limestone, marble and some sandstone types.
  • Non calcareous: these are the stone types that do not contain calcium carbonate. Non calcareous stones include for example granite, sandstone and basalt.
  • Slate: this is a metamorphic stone formed over a long period of time. Slate results from a mix of other stone types and minerals which become one under high pressure.

The natural stone types differ from each other by several ways, which means that they require different types of tile adhesive. The most important properties of the stone that should be considered when choosing glue for tiles include:

  • Porosity: for example limestone and sandstone are very porous by nature requiring a natural stone adhesive which does not get absorbed into to the tile. On the other hand, marble and granite are very dense by structure and therefore, a greater range of tiles adhesive systems is available for them.
  • Movement: temperature extremes and fluctuation affect natural stone tile types differently. The behavior of the tiles is also different whether they are part of an interior or exterior. When the stone is likely to be affected by temperature fluctuation (exterior applications, floor heating etc.) flexible stone fixing adhesive is recommended.
  • Color: the tiles also vary by color: some are lighter than others and for instance limestone and marble can even have a translucent look to them. Therefore, as a rule of thumb, never apply grey natural stone adhesive to light colored tiles. Nor should you use spot fixing as the stone adhesive may form shadows and color changes on the tile, not to mention that spot fixing can lead to cracks and breakages as the load is not equally distributed.

The substrate affects the choice of glue for tiles

Not only is it important to consider the needs of the specific natural stone tile types, but also those of the substrate the tiles are going to be laid on. Also here the porosity of the substrate plays an important role.

It is important to know whether the substarte is porous. Porous tiles may absorb regular tile adhesive types into the pores, which results in weaker bond and possible adhesive failure. On the other hand very dence and flat substrates require a stronger adhesive as there are no pores to promote adhesion. For example tile to metal adhesive is one that provides good adhesion on hard substrates.

The load bearing capacity of the substarte must also be considered. For example when tiles are applied to an existing tiling, a special tile on tile adhesive is needed. The weight of the new tiles must also be considered for the sake of the substrate. Additionally the location of the substrate matters: interior and exterior tile adhesive systems differ from each othe in regards og flexibility and temperature resistance. For example an exterior wall tile adhesive is generally stronger but likely to be more flexible than similar product intended for interior use.

TIP: most manufacturers name their products by the type of tile and substarte they are suitable for. When laying tiles on metal, look for a tile to metal adhesive and if applying tiles to existing tiling, opt for a tile on tile adhesive. On the other hand, some products are named by the tile type they are made for, such as marble tile adhesive.

The most common types of tile adhesive for natural stone

There are several types of tile adhesive for natural stone which all can result in a faster and easier process as well as a stunning end result. There is no best tile adhesive for natural stone that works for all projects; the best glue for tiles is defined by the tile type, environment and substrate.

The most common natural stone tile adhesive types include the following.

High strength construction epoxy tile adhesive

Epoxy is one of the strongest and most durable adhesive of all times. Therefore, in the right formulation, it is also suitable as a tiles fixing adhesive. Most types of epoxy tile adhesive are flexible, which means that the finished tiling is less likely to be affected by temperature extremes and fluctuation. Epoxy wall tile adhesive is applied in thinner layers than epoxy tile adhesive for floors, yet they both result in extremely strong bonds.

Cement based thin set and thick bed tile adhesive systems

Cement-based adhesives or mortar exists as thin set and thick bed tile adhesive. These are suitable for most types of natural stone tiles as long as they are not absorbent. Generally mortar is available in white and grey colors. Thick bed tile adhesive is common on floors that are often wet (exterior, bathrooms, swimming pools etc.). Thin set adhesives, in turn, can be applied on both floors and walls. When looking for an easy tile adhesive, cement based products are a considerable option.

Custom-made polymerized glue for tiles

When it comes to polymer adhesives, a lot is possible. Also for natural stone tiles, there are multiple flexible polymerized adhesives available which can be tailored to fit the purpose perfectly. For more information on what is possible with this type of adhesive for tiles, do not hesitate to contact us!

The right natural stone fixing adhesive for a specific environment

natural stone tile adhesive on the floor
For floors it is important that the air need of the natural stone tile adhesive is considered.

The most common applications of natural stone tiles are interior and exterior walls and floors. When laying floor or wall tiles made of natural stone outside, it is important to consider the ideal application conditions: not too cold and not too humid. Most stone fixing adhesivesystems require a certain ambient temperature and humidity percentage to be able to harden. Interior tiling has more adhesive options as the temperature and humidity are not likely to exceed recommended values.

Temperature extremes and fluctuation affect the choice of tiles fixing adhesive

When choosing glue for tiles, it is also crucial to consider which factors or elements are likely to affect the finished tiling. Especially temperature extremes and fluctuations should be taken into account, as they may cause tile movement, possibly damaging to the stone adhesive. For exterior tiles, a flexible adhesive is recommended as the stones are likely to be affected by low and high temperatures as well as rapid fluctuation due to difference between day and night temperature. For example exterior wall tile adhesive is almost predominantly flexible to some extent. In interiors the temperature fluctuation is usually not great enough to affect the tiling or the tile adhesive unless floor heating is installed under the tiles. Natural stone tiles above floor heating always require a flexible natural stone glue in order to prevent cracking due to movement and extend the lige expectancy of the tiling.

Natural stone glue for wall and floor tiles

Regarding the adhesive, it matters whether the tiles are laid on walls or floors as they require either vertical or horizontal bonding. For floors, it is crucial to consider the air needs of the adhesive. As there is not much air under floor tiles, the adhesive should be able to cure through other means to guarantee shorter curing times. For walls, in turn, it is important that the adhesive is strong enough to hold the weight of the tile on a vertical surface. Also the weight of the tile should be considered. When looking for a strong solution for heavy wall tiles, an epoxy tile adhesive is an option.

Sound insulation adhesive for tiles

Some applications also require special properties from the tile adhesive. One of such cases is when sound insulation is needed. Naturally, sound insulation could be taken care of by installing a membrane or using mats, however, a mortar-like adhesive can also do the job more easily and at lower cost.

A special sound insulation tile adhesive usually consists of advanced polymers, rubber fillers and reinforcing fibers. The fibers provide strength and the rubber fillers ensure flexibility. Additionally, the advanced formulation of the adhesive protects the tiling from cracks that originate from the substrate. Find out more about sound insulation adhesives for natural stone tiles by contacting us.

Cost efficient sound insulation with adhesive

One of the most important benefits of realizing sound insulation using an adhesive is its efficiency. Sound insulation tile adhesives are easy and fast to apply as well as cost efficient. Labor costs are further reduced due to the fact that the tile adhesive and sound insulation are applied in one go using a single system.

Find the best tile adhesive for natural stone

As there are many natural stone tile types and possible stone fixing adhesive systems to realize the tiling with, it is not always an easy job to pick the best tile adhesive. New technologies and chemistries allow for smart natural stone glue types which speed up the process and result in beautiful tiling. However, sometimes a more traditional adhesive does the job best. In case you are curious for the options or are looking for a trusted adhesive for natural stone tiles, hit the button below and contact us!

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man installing masonry veneer on a masonry veneer mortar bed

Masonry veneer mortar guarantees durable results

Masonry brings warmth and feel to interiors and exteriors, and it works on large surfaces as well as on smaller details. However, it is not the cheapest of options, and the installation can be laborious. Therefore, many projects end up with masonry veneer, which creates the masonry-effect on interior and exterior walls, fireplaces and many more applications at lower cost. Masonry veneer creates long lasting stone brick looking surfaces as long as the right veneer type is used, the installation is done by a professional and high quality materials, including masonry veneer mortar or adhesive, water and air barriers as well as pointing mortar, are used.

Traditional vs. modern – 2 ways of masonry veneer installation

One of the main reasons for masonry veneer installation failure is water intrusion which causes delamination. Water and air barrier materials as well as masonry veneer mortar have a great impact on whether water intrusion happens. Therefore, these materials should be chosen carefully keeping in mind the veneer type and application. Masonry veneer installations can be carried out in two ways:

man applyin masonry veneer mortar at the back of a tile
Traditionally, masonry veneer mortar is applied to the back of the tile and then placed on its spot.

1. Traditional masonry veneer installation

Traditionally, masonry veneer is installed by applying two layers of felt paper followed by a metal lath. The lath is coated with a mixture of regular sand and masonry cement. The veneer is then placed on the prepared surface piece by piece. Masonry veneer mortar is applied to the back of each tile, after which they are placed on the surface. To make the tiles stick, they must be held on the spot and not moved once they touch the surface.

The traditional masonry veneer adhesive may cause installation failure due to the fact that the adhesive is not strong enough for heavy duty vertical bonding. Fortunately, there are masonry veneer mortar systems that are developed for vertical bonding.

2. Modern polymer enhanced mortar for masonry veneer

To overcome the two most common issues involved in traditional masonry veneer mortar applications (delamination and poor vertical bonding strength), more modern systems have been developed. These include polymer enhanced mortar systems which allow for a wider range of insulation possibilities and provide greater strength on vertical surfaces. Instead of regular sand-cement mortar, the substrate should be prepared by applying two or more coats of air and water barrier in order to create a membrane that does not let any air or moisture through. Learn more about suitable air and water barrier products by contacting us.

Polymer fortified masonry veneer adhesive benefits

The polymer enhanced mortar systems for veneer have several properties that make them the ideal choice. The most significant benefits include:

  • No sagging: regardless of the application method, polymer fortified adhesives do not cause the masonry veneer to sag, which guarantees long lasting results on facades, fireplaces and other vertical surfaces.
  • Free of VOC: most mortar systems, also tile mortar, come in a powder form which is mixed with water. The systems cure as the water evaporates. No solvents are involved in the process, which results in environmentally friendly zero VOC products.
  • Resistant to microorganisms: the mortar systems approved for exterior use in particular are often resistant to microorganisms, which prevents growth of mold and mildew.
  • Two application methods: the masonry veneer adhesive can be applied in two ways: back of the tile and mortar bed. This makes the adhesive mortar flexible in regards of application. Technical information, product suggestions and training possibilities are available upon request.

1. Back of the tile veneer adhesive application

First a skim coat is applied to the back of the tile followed by a thicker layer of mortar. The tile is then placed on the substrate, slid an inch or two from its place and moved back to the final position. This is done to ensure good adhesion.

2. Masonry veneer mortar bed

A faster method of working exists when the veneer mortar is applied on the substrate and the skim coated tiles are pressed on it. Also when using this method, the tile should be slid back and forth from its place to guarantee adhesion.

Buying high quality masonry veneer mortar

One of the key factors that encourage successful masonry veneer installation is the type of mortar used to bond the tiles to the substrate. If you are looking for a high quality masonry veneer mortar system, do not hesitate to contact us. Our experts are happy to help you find the best possible products for your project.

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laminated timber beams with adhesives for timber constructions

Ever-growing demand for adhesives for timber laminating

The construction industry is currently experiencing a shift towards wooden materials which are generally more sustainable than conventional construction materials such as steel and reinforced concrete. This trend brings adhesives for timber laminating into the picture: the right timber adhesive enables even high-rise buildings made of wood by allowing for extremely strong laminated timber which is as safe as other materials also in earthquake sensitive regions. The main benefit of laminating timber is that it makes wood as strong as concrete or steel but is much lighter in weight.

Adhesives for timber laminating are used in cross laminated timber (CLT) and glue laminated timber (glulam) which exist as I-beams, straight laminated beams, curved laminated beams and wall beams. The task of the lamination adhesive is to keep the different layers of the beams together. The beams enable stronger and lighter bearing structures than solid wood of same thickness.

Laminating timber enables high-rise buildings made of wood

The wood laminating adhesive market is currently experiencing rapid growth, as wood has become a more desired construction material. Even though wood is usually considered a fire sensitive material which is generally weaker than concrete and steel, timber laminating allows for beams that are strong enough as bearing structures are treated to increase their fire resistance.

Lately glulam and cross laminated timber have also become trendy materials in constructions of high-rise buildings. The tallest wooden tower is currently Mjøstårnet located nearby Oslo, Norway. The building is made entirely of wood and timber: glulam and CLT beams play an important role in the bearing structures of the tower.

Different types of adhesives for timber laminating

Timber laminating of structural wood beams such as cross laminated beams and glue laminated beams can be done with several different types of adhesives. Each type provides strong bonds and enhances the beams´ load bearing capacity. The choice between the types should be based on the type of wood, the environment´s requirements as well as the desired application method and most convenient curing process. If the timber has been treated with a preservative prior to laminating, the compatibility of the preservative and laminating adhesive must be verified.

Below we will describe three of the most common adhesive systems used for laminating construction timber. The types differ from each other by consistency and curing method, and they can be modified to meet specific requirements crucial for your application.

1. Melamine (urea) formaldehyde adhesives

Melamine formaldehyde (MF) and melamine urea formaldehyde (MUF) adhesives belong to the group of polycondensate adhesives which currently dominate the timber adhesives market. MF and MUF adhesives are multi component glues which require a hardener in order to set and cure. These timber laminating adhesives cure through the separation of water. The melamine based adhesives provide timber with colored glue lines which have enhanced water resistance. Additionally, especially MUF adhesives have natural resistance to fire and can, therefore, be used for timber laminating of beams even in demanding environments.

layers of laminated beam kept together by adhesives for timber constructions
Melamine based adhesives for timber laminating make sure the wood layers stick together.

The melamine (urea) formaldehyde adhesives are the most versatile glues for timber. They are designed for load bearing constructions, but are also applicable to other smaller structures.

MF and MUF adhesives contain formaldehyde which, in some cases, is a substance to be avoided due to emissions caused by it. Fortunately, today’s technology allows for highly sustainable melamine formaldehyde systems which emission rates are equal to the one of wood itself. These adhesives are currently not many in the market, however, the demand is growing rapidly. Might you want any additional information on low formaldehyde melamine based CLT and glulam adhesives, do not hesitate to contact us.

Uses next to glulam and CLT: multilayer boards, wall elements, finger jointed solid timber, Japanese laminate, solid wood applications and furniture.

2. Phenol Resorcinol formaldehyde adhesives

Also phenol resorcinol formaldehyde adhesives (PRF) cure by polycondensation and are multi component systems. PRF adhesives form dark colored glue lines which are extremely strong and resist both weather and water.

Phenol resorcinol formaldehyde adhesives are among the most common glues used for laminating timber in load bearing and non-load bearing constructions. As a conventional system, it is trusted by many manufacturers of wall beams, straight laminated beams and curved laminated beams (glulam).

Uses next to glulam and CLT: Japanese laminates and finger jointed solid timber

3. Laminating timber with polyurethane adhesives

Polyurethane (PUR) adhesive is a newer alternative to the formaldehyde containing conventional systems. The PUR adhesives are usually moisture curing (polyaddition), one component systems using the water in the wood structure to set and harden. This allows for fast curing in room temperature. Additionally, due to the fact that no hardener is needed, the adhesive does not require mixing, which makes the process more efficient and faster. Polyurethane wood laminating adhesives are also formaldehyde free, which makes them a more environmentally friendly choice than the alternatives.

Whereas PRF, MUF and MF adhesives can be brittle and stiff, PUR offers a more ductile solution which suits many timber laminating applications from contactless finger jointing to traditional bearing and non bearing structures.

Uses next to glulam and CLT: contactless finger jointing, wall elements, window and door scanting

Find the right adhesives for laminating timber

Choosing an adhesive for laminating timber is never a straightforward process whether you are looking for one for a new production line or a new one for an existing line. A multitude of factors must be considered, the efficiency and product durability being the most important ones. Therefore, in order to end up with the adhesive system most beneficial for your process and product, it is good to consult an expert. We at AdhesivePlatform are determined to provide you with all the necessary information and advice as well as forward your enquiry to our specialists to guarantee you the best possible adhesive for timber laminating.

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PVC bonding required for pipelines

Industrial PVC bonding systems for pipe installations

Next to polyethylene and polypropylene, polyvinyl chloride, PVC, belongs to the world’s most widely produced synthetic plastics. One of the most common uses of PVC plastics is in industrial pipeline installations, of which feeds range from potable water to aggressive chemicals.  As the use of PVC pipe installations is broad, so are the solutions for industrial PVC bonding. In this article, we will take a look at the different PVC materials and pipeline applications, as well as suitable PVC adhesive solutions for the different uses.

Industrial PVC bonding and properties of the adhesive for PVC

In industrial applications, PVC is most commonly used in pipeline installations such as disposal systems. The installation requires PVC bonding to create strong and watertight joints and seams, as well as fill in gaps and cracks. The applications of PVC adhesive glue include high pressure and drainage pipes, as well as potable and wastewater pipelines. Pressure joints and press fits commonly require these adhesives.

Depending on the application, the industrial adhesive systems should be:

  • Waterproof: it goes without saying that the adhesive bonding together two pieces of pipe containing liquids, should not let any of it through.
  • Chemical resistant: depending on the purpose of the installation, the PVC bonding should be resistant to the feed including all chemicals it may be exposed to. For example, the horticulture industry installations used for delivering fertilizers, must not let the fertilizer affect the pipes and bonds.
  • Resistant to high pressure and discharge: some industrial pipeline installations are used for delivering and discharging fluids in high-pressure conditions. Therefore, the PVC adhesives used in these, must not be affected by the process and vice versa.
  • Safe to use with potable water: many PVC pipelines are designed to deliver drinking water. Adhesives used for these pipes must comply with food and safety regulations to make sure no residue will end up in the potable water.

In case you have a PVC application that requires special property adhesives or sealants, contact us and share your project details to get tailored advice.

About applying PVC adhesive

The materials most commonly used in industrial pipeline installations are UPVC (unplasticized polyvinyl chloride), CPVC (chlorinated polyvinyl chloride) and ABS (acrylonitrile butadiene styrene). Each of the materials has their own properties and requirements regarding adhesives. However, there are also products that can be universally used for all three materials.

green pipes requiring pvc bonding
Before PVC bonding, the surface must be prepared properly to allow the adhesive for PVC to bond.

Below you can find some general information on applying PVC adhesives and preparing the substrate.

  • Surface preparation: a clean substrate is the foundation of successful PVC bonding. The substrate must be free of oils and grease before application. Many adhesives manufacturers also offer PVC cleaning agents which clean the substrate without damaging it. For example, acetone can be too strong a detergent and cause damage.
  • Protection: in general, PVC bonding involves materials which contain substances that may be hazardous to health when inhaled or touched. Therefore, it is advised to at least wear protective clothing, mask and gloves. Always see the manufacturer’s advice on required protection.
  • PVC primer: especially when working with solvent cement, a PVC primer may be needed to start the chemical reaction softening the PVC pipe and making it ready for the adhesive to adhere to.

Note: PVC bonding often takes place in critical parts of pipe installations, which is why it is paramount that the PVC adhesive glue used for the installation is certified according to relevant standards, as well as has a declaration of performance (DoP) provided by the manufacturer to guarantee performance.

Guarantee success for your PVC bonding project

To make sure your PVC bonding project is a success, it may come in handy to turn to a specialist. Do not hesitate to contact us for any questions or inquiries you may have regarding PVC bonding products, application, or training. Our experts are happy to help you achieve the best possible results in PVC bonding.

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chemical resistant sealant in tanks

About chemical resistant sealant and adhesive solutions

Chemicals such as acids, fuels and alkalis are present in many environments for example in the  petrochemical, biochemical and food processing industries. In these environments it is of high importance that the chemicals being processed or worked with do not get to contaminate the soil and do not contribute to contamination of other products. Therefore, products such as chemical resistant sealant, adhesive and coating are necessary for example in chemical processing plants, chemical piping and tanks as well as sewer systems.

In this article we will take a closer look at defining the right chemical resistant sealants, adhesives or coatings based on the operating environment´s requirements. Here you will also find the common certificates required of chemically resistant seals and bonds as well as application possibilities.

Application requiring chemical resistant bonding and sealing

The petrochemical and biochemical industries require 100% watertight and liquid proof systems that resist a wide range of chemicals. The chemical resistant sealants, adhesives and other products are suitable for many applications. Here we will look closer at four of them:

1. Sealing liquid repellent and impermeable floors

Locations where hazardous chemicals are used or processed require a flooring system that is immune to the chemicals and prevents soil contamination. Tank storage areas, gas stations and chemical processing plants as well as battery rooms. The flooring further requires sealants to make sure nothing gets pass the floor. Both liquid repellent and impermeable floors can be sealed.

Depending on the floor type, the chemical resistant sealant for floors is used in the seams, floor joints and joints between walls and floors to prevent soil contamination and sacking of the floor. Not only do these seals protect the environment but also contribute to the area’s aesthetics: some sealants are available in different colors whereas others can be painted to reach the wished end result.

Example solutions: permanently elastic MS polymer systems, self leveling one component MS polymer systems, 2K self leveling crack fillers on epoxy polysulfide basis (sealing and repair of concrete floors).

2. Chemical resistant sealants for storage tanks, basins and silos

chemical resistant sealant in silos
Silos especially in the food processing industry require chemical resistant sealant systems that do not affect the stored substance.

Tanks, silos and basins that store liquids or solids must be absolutely leak-proof. This is where sealants and adhesives come into play. Depending on what is stored in the container, the sealant must be chemical resistant, sometimes even for aggressive fluids and gases. Chemical and microorganism resistance is especially important for tanks used for storing waste water or compostable waste where fungi and bacteria may grow. Generally it is also paramount that no thermal or mechanical stress gets to affect the seals.

It is also crucial, especially in the food processing industry, that the sealant does not have an influence on the substance stored. Therefore, one should opt for products that are HACCP or ISEGA certified. More information on certification can be found later on in this article.

Example solutions: permanently elastic one component MS polymer based sealants, MS polymer sealants that are resistant to acids, fumes and other hazardous substances, polysulfide based 2K coatings that bridge cracks, remain elastic and are UV stable, thixotropic 2K polysulfide and epoxy polysulfide coatings. In case you need more information on sealing and bonding tanks, silos and basins, contact us and get tailored advice.

3. Bonding and sealing wells, sewers and separators

Next to tanks, silos and basins, other application where leakages are a no-go include wells, sewer systems and separators. A chemical resistant sealant can be used for example in pipes and separators which store or pass on liquids such as waste water.

These pipes and separators are usually protected with a coating, and the joints and seams are sealed with an appropriate sealant. The materials that are sealed with these products include concrete surfaces and PVC pipe installations. The proper sealing of the joints and seams is extremely important in preventing soil contamination and damage caused by leakages.

Example solutions: thixotropic 2K epoxy polysulfide coatings that bridge cracks and retain their strength when subject to severe temperature fluctuation.

4. Tricky seals in the chemical industry

Some applications of chemical resistant sealing and bonding systems need additional attention: these include for instance bridging joints and other seals especially in the chemical industry. The applications cover high movement and expansion joints, impermeable seals for floors that must bear heavy mechanical loads as well as membranes for under machinery and chemical installations.

Example solutions: highly flexible chemical resistant sealants, membrane seals, 2K self leveling polysulfide based sealants (for horizontal or vertical joints).

Guarantee the right chemical resistant sealant or adhesive

When choosing suitable materials for sealing and bonding, chemical resistance should get a great deal of the attention. It is not enough to know which chemicals are present in the environment, but the process includes more detailed factors as shown below.

  • Chemicals and concentration: you should be aware of which chemicals are present in the environment and may affect the seal or bond. It is also important to know the concentration of the chemicals as it can be crucial for defining the right system.
  • Exposure and time: when defining exposure, think of everything from occasional splashes to continuous immersion. Sometimes a chemical resistant sealant is resistant to immersion in the chemical, but not for immersion lasting forever.
  • Temperature and mechanical load: thermal and mechanical loads may affect the chemical resistant product´s resistance. Usually the resistance weakens in elevated temperatures and under high mechanical stress.

Note that the more resistant the system, the higher the costs. However, a chemical resistant system is an investment that may save you from a lot of future maintenance and repair costs caused by malfunction.

CE and ISEGA – certified chemical resistant sealants

When it comes to chemical resistant sealing and bonding, the products can have several certificates and the must meet international and national standards. The ISEGA is the most important certificate that all products used in food processing should have. The CE marking, in turn, indicates compliance to crucial European standards.  

  1. ISEGA: assurance that products are safe to be used in the preparation, processing, treatment, packing, transport and distribution of food. These products must have the lowest risk of contamination, and other hazards. Therefore, the ISEGA certification, together with HACCP, is crucial especially for chemical resistant sealant and adhesive products used in the food processing industry.
  2. CE marking: the CE mark shows that the product complies with directives and laws set by the European Union. For chemical resistant sealant products the CE marking is often based on two European standards: EN 14188, hot and cold applied sealants, and EN 15651, sealants for non-structural use in joints in buildings and pedestrian walkways.

Seal your project with chemical resistance

Is your production plant, storage area, tank, silo or sewer system in need of chemical resistant sealing, bonding or coating? Feel free to contact us for more information, custom advice, suitable products and training in the field of chemical resistant sealant and adhesive products. Our experts are happy to help with any enquiry you may have. Since January 2021, we have expanded our services to offer our assistance with coating issues. We offer you this service completely free of charge.

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