Two-Part Artificial Grass Adhesive: Everything You Need to Know

Two-Part Artificial Grass Adhesive: Everything You Need to Know

 

Due to the size and shape of your garden, when installing artificial grass it may be necessary to join two separate rolls of turf, to achieve full coverage.

Alternatively, you might be installing fake grass to an existing surface, such as concrete.

And perhaps you need to secure a foam underlay, too?

In any case, you’ll find yourself using some form of adhesive to get the job done.

There are two types of adhesive that you can choose from: single, and two part.

Both types have their advantages and disadvantages and it all really depends on what you are intending to use the adhesive for and – importantly – how much adhesive you’ll need, as to which is best.

We weighed up the pros and cons of each type of adhesive in a previous article, to help you decide which would be best for your own intended use.

We have also explained everything you need to know about single-part adhesive.

And today, we’re doing the same for two-part adhesive. We’ll be discussing everything you need to know about it, so when it comes to installing your turf, you’ll know exactly what to do.

Let’s start by explaining exactly what we mean by ‘two-part adhesive’.

 

 

What is it?

 

Two-part adhesive is available in several different forms.

We highly recommend the range of adhesives manufactured by EnviroStik.

Two-Part Artificial Grass Adhesive: Everything You Need to Know

The most common type of adhesive produced by EnviroStik is Multi-Purpose Adhesive. Other types – such as Wet-Fix, Ultra-Fix and Flexibond – are available, too.

Multi-Purpose Adhesive, however, is suitable for virtually every need a DIYer may have, so we highly recommend it for DIY use.

EnviroStik Multi-Purpose Adhesive is a two-component polyurethane-based adhesive system, primarily designed for bonding artificial grass carpets to joining tape; it produces a strong, invisible join. It’s also used for attaching fake turf to a variety of other substrates.

 

 

What is it made from?

 

As the name suggests, two-part adhesive is supplied in the form of two separate components. The first part is polyurethane, typically supplied within either a 5kg or 10kg tub. The second is a separately packaged hardener, made from a 100% liquid isocyanate. It’s supplied in 0.5kg bottles for 5kg tubs and 1kg bottles for 10kg tubs.

 

 

 

How do you mix the two-parts together?

 

Two-Part Artificial Grass Adhesive: Everything You Need to Know

The two components are mixed within the bigger tub that contains the first part.

Firstly, break the seals on both containers, then pour the entire contents of the hardener into the tub of polyurethane.

To achieve a full bond, the mixing ratio needs to be 10:1, so always use the entire amount of hardener supplied.

Then, using a mechanical paddle mixer, thoroughly mix both parts together. It is possible to mix the adhesive using a trowel, but that both takes longer and is more work – and you must ensure that both parts are sufficiently mixed.

Poorly mixed adhesive does not cure correctly and remains soft. It is, therefore, essential that the mixing of the two components is complete – you should take particular care to incorporate the polyurethane around the sides and at the bottom of the tub.

 

 

What colour is it?

 

Two-part adhesive is green in colour, to match the colour of artificial grass.

 

 

How long is the shelf life?

 

Both parts of EnviroStik Multi-Purpose Adhesive will keep for up to 12 months, in unopened containers.

 

 

How do you apply it?

 

Two-Part Artificial Grass Adhesive: Everything You Need to Know

The mixed adhesive is poured from the tub directly on to either the joining tape or the substrate.

The adhesive is then spread using a trowel, to provide an even coverage of glue to the joining tape or substrate.

For professional installers, Multi-Purpose Adhesive can be used alongside an application machine.

It should never be used in wet conditions or if there is a risk of ground frost, although it is suitable for use in damp conditions.

 

 

How long is it workable for?

 

The amount of workable time you get with two-part adhesive depends upon the climatic conditions. The table below shows approximate timings, based upon average humidity. The higher the humidity, the quicker it will harden:

Ambient TemperatureWorkable Time
5°C4 Hours
10°C2 Hours
20°C1 Hours
30°C30 minutes

 

 

How long does it take to fully cure?

 

The warmer the temperature and the higher the humidity, the quicker it will cure. The table below shows approximate timings, based upon average humidity. Please note, you should not use the adhesive if there is a risk of ground frost before completion of setting time:

Ambient TemperatureCure Time
5°C24 Hours
10°C12 Hours
20°C4 Hours
30°C2 Hours

 

 

How much does it cost?

 

For a 5kg tub of Multi-Purpose Adhesive, it costs £36.99; 10kg tubs of Multi-Purpose Adhesive cost £57.99.

 

 

What is the coverage rate of 5kg and 10kg tubs?

 

Coverage depends entirely upon the thickness of adhesive applied to an existing surface or joining tape.

As a general guide, one mixed 5kg tub will cover approximately 2m2, with 10kg tubs covering 4m2.

When applying to a joining tape, you’ll be able to cover around 10–12m of tape, at a thickness of 2mm. A 10kg tub will cover around 20–24m of tape.

You can use the calculator below to estimate how much adhesive you are likely to need to secure the joins of your artificial lawn.

 

 

When should you use it?

 

Two-part adhesives have several uses.

The main use is to join two pieces of artificial grass together, using joining tape, to form an invisible, secure join.

Two-Part Artificial Grass Adhesive: Everything You Need to Know

It can, however, also be used to install artificial grass to existing substrates and surfaces, such as concrete, paving slabs, block paving or decking.

Another popular use is to fix artificial grass to either a 10mm or 20mm foam underlay, to provide a soft, bouncy cushion which can help protect against injuries from trips or falls.

Two-part adhesive is ideal for fixing foam underlays to existing surfaces, too.

We advise that you test that the product will adhere to a particular surface using a small sample of artificial turf, before proceeding with your installation. For further information and advice on which substrates Multi-Purpose Adhesive can be used with, please contact EnviroStik.

 

 

How should you prepare the existing surface?

 

Ensure the existing surface is smooth, clean, sound, and free from dust, loose particles or contaminants, such as oil, which could affect adhesion.

Dampness can be tolerated, but any surface water should be removed.

 

 

What are the advantages?

 

Two-part adhesive is ideal when you have joins over 4m in length to secure, or if you want to fix your artificial grass or foam underlay to an existing surface.

That’s because you’ll get a far higher coverage rate than you do with single part adhesives, such as AquaBond.

The 310ml cartridges that AquaBond is supplied in cover just 0.3m2 at a cost of £7.99 per tube, as opposed to 2m2 for a £37.99 5kg tub and 4m2 for £57.99 10kg tub with Multi-Purpose Adhesive.

When you compare the costs of both single and two-part adhesives, you’ll notice that you get far more coverage for your money by choosing two-part adhesives.

For more information on the advantages and disadvantages, and a comparison between single part and two-part adhesives, please click here.

 

 

What are the disadvantages?

 

There are, of course, some disadvantages to using two-part adhesives and there are instances in which you would be better off using single part.

When it comes to delicate repair work, such as replacing a small patch of grass that has been damaged or permanently stained, you’ll find that using single-part adhesive is far easier.

Two-Part Artificial Grass Adhesive: Everything You Need to Know

That’s because these 310ml cartridges are supplied with a nozzle and the glue is applied using a gun applicator, meaning you can apply a precise amount of glue to awkward areas quickly and easily.

Of course, it depends upon the nature of the repair, but you may find that using two-part adhesive, applied using a trowel could potentially be messy and you may be running the risk of accidentally getting glue on the artificial fibres, which of course, should be avoided.

Single-part adhesive is also ideal for securing the perimeter of an artificial lawn when using a concrete edging, as it can quickly and easily be applied to narrow strips of concrete.

Two-Part Artificial Grass Adhesive: Everything You Need to Know

Finally, two-part adhesives require the user to mix the two parts together which, of course, takes time and, ideally, requires the use of a mechanical paddle mixer. Tubes of single part adhesive, on the other hand, just need to be placed into a gun applicator and away you go.

For more information on the advantages and disadvantages, and a comparison between single part and two-part adhesives, please click here.

 

 

What temperature can you use it in?

 

Multi-Purpose, two-part adhesives can be used in temperatures ranging from 5°C to 30°C.

Wet-Fix adhesive can be used in temperatures between 3°C to 30°C.

 

 

Can you use it in damp or wet conditions?

 

Yes, Multi-Purpose Adhesive can tolerate damp conditions, but any surface water should be removed. Do not use in wet conditions.

 

 

What safety measures should you take?

 

Prior to using two-part adhesive, you should read all of the information on the side of the tub, paying particular attention to the health and safety advice.

Two-part adhesive can potentially cause harm if it is not used correctly.

Two-Part Artificial Grass Adhesive: Everything You Need to Know

Always Wear Protective Gloves…

Two-Part Artificial Grass Adhesive: Everything You Need to Know

…And A Respiratory Dusk Mask When Using Adhesive

 

 

 

 

 

 

 

 

 

Multi-Purpose Adhesive contains silica, which is harmful by inhalation and can course serious damage to health as a result of prolonged exposure. We strongly recommend that you wear a dust mask or respirator whilst using the product, and ensure the area is well-ventilated.

Two-part adhesive can also be irritating to eyes, the respiratory system and skin.

To prevent contact with skin whilst using this product, ensure that you wear suitable protective clothing and gloves at all times.

For further health and safety information, please read carefully the datasheet supplied by EnviroStik, here.

 

 

Conclusion

 

When it comes to installing artificial grass, two-part adhesive has many different uses and is an important part of both the DIYer and professional installers’ armoury.

Hopefully, this article has answered many of the burning questions you may have regarding its use and you’ll now be armed with the knowledge you need to undertake your installation.

If, however, there is something we haven’t covered, then please let us know by using the comments section below, and we’ll get your questions answered.

You may find the datasheet for Multi-Purpose Adhesive, provided by EnviroStik, a useful read, too.

Also, if you would prefer a professional installer, who’ll know the ins and outs of using artificial grass adhesive, to install your artificial lawn for you, then why not contact your nearest NeoGrass Approved Installer? They’ll be more than happy to assist you.

Don’t forget, you can also get samples of our products, here, and you can also buy 5kg multi-purpose adhesive artificial grass and 10kg tubs of artificial grass glue via our online store.

 

 

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