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Construction Adhesive

Construction Adhesive: Best Heavy Duty Building Bond

Adiseal construction adhesive is a heavy duty adhesive to bond different building materials together. It has proven to be the strongest adhesive in an independent strength test in the UK. Whether it is used for professional use or DIY applications in building projects, Adiseal provides a high-strength, heavy duty, flexible, waterproof & durable bond.


What is the best construction adhesive?

In an independent construction adhesive strength test by Ultimate Handyman in the UK, Adiseal proved to be the best adhesive. Adiseal’s remarkable heavy duty performance surpassed all competitors, displaying over three times the strength of the next best product.

Strongest construction adhesive in independent test

The test had to be abandoned because the screws holding the metal sheet down began to rip out, and the hydraulic ram seal even broke due to Adiseal’s incredible strength. It exceeded the capacity of the test rig to handle.


Video of best construction adhesive strength test by Ultimate Handyman


Strongest construction adhesive test results

ProductMax pressure when adhesive bond broke (psi)
Adiseal3123 + psi
SupaBond1115 psi
Tec 71016 psi
HB42942 psi
Loctite PL Premium873 psi
Gorilla Grab Adhesive862 psi
Bond It PU18582 psi
Bond It Save Nails411 psi
Best adhesive test results table


“That is actually unbelievable!”

Ultimate Handyman




Testimonials & some comments on the: Grab adhesive tests 2017, video on YouTube

  • That Adiseal is phenomenal!
  • That Adiseal is some stuff though, definitely need to get some of that bought!
  • I instantly went looking for Adiseal!
  • Need to get my hands on some of that to try out.
  • Looks like a cracking product.
  • Having used the two most expensive brands on numerous occasions, I’ll be trying out the others, especially the Adiseal.
  • Adiseal certainly surprised me in this test!
  • Fantastic tests. It’s unbelievable that Adiseal test with the hardwood.



Independent best construction adhesive strength test results.




What about other construction adhesives?

Other adhesives were not tested in this video as they had already been tested previously by Ultimate Handyman. In these previous tests, products from Soudal, Everbuild, Geocel & C-Tec CT1 were tested along with the old formula of Adiseal.




Applications & Benefits

Adiseal heavy duty construction adhesive & sealant seals:

Seals: Baths, showers, gutters, drains, sinks, vehicles, boats, felt roofs & many other applications.

Other benefits of Adiseal include:



Materials Adiseal heavy duty construction adhesive bonds

Adiseal will successfully stick the following items:

Details of benefits

Strongest waterproof construction adhesive

Adiseal is the strongest waterproof construction adhesive, suitable for dry, damp, wet, and underwater applications. It also offers excellent resistance to mould growth. In tests, Adiseal demonstrated superior performance and the strongest resistance to mould.

Applying heavy duty construction adhesive on a wet brick.




Clear construction adhesive in water

In our test, Adiseal Ultra clear construction adhesive outperformed other products by maintaining its clarity in a cup of water, while competing clear products turned white.

clear construction adhesive test in water



Exterior uses

Adiseal serves as an ideal exterior construction adhesive due to its waterproof properties and ability to withstand various weather conditions.


Tip – When using an exterior adhesive, it is better to apply it in thin vertical strips. This allows any water to run down between the exterior construction adhesive instead of building up on top of the waterproof adhesive. In cold temperatures, this water can freeze and expand. This can place additional pressure on the exterior adhesive.


Instant Grab

Adiseal boasts a high initial grab, providing a strong hold on dry or wet surfaces. For even stronger instant grab adhesive, Adiseal Hi-Grab offers enhanced holding strength, eliminating the need for temporary supports while the adhesive dries.


Gap Filling Adhesive

Adiseal offers high gap fill for uneven surfaces and remains in place without slumping, making it suitable for overhead and vertical applications, ensuring a secure bond.


Over Paintable

Adiseal is available in different colours: white, black, grey, brown & ultra clear. It is also possible to paint over cured Adiseal with most paints. Custom coloured Adiseal can also be made by mixing Adiseal Ultra clear construction adhesive with paint.


Flexible Construction Adhesive

Unlike brittle adhesives, Adiseal is flexible, maintaining a strong and flexible adhesive bond even with vibration, contraction, and expansion caused by changing temperatures and moisture conditions. It provides a long-lasting, durable bond that won’t crack or break over time.

Demonstration of flexible construction adhesive


Solvent Free

Unlike solvent-based adhesives, Adiseal is safe to use on delicate materials like mirror backing and polystyrene, as it is solvent-free. This makes it the ideal choice for projects involving sensitive materials.


No Shrinkage or Cracking

Unlike solvent-based adhesives, Adiseal doesn’t shrink or crack during curing, thanks to its solvent-free composition, resulting in a stronger bond.


EC1 Plus certified

Adiseal contains no VOC and has been certified the top certification, EC1 Plus.



ISEGA Certified

Not all construction adhesives are suitable for use in food preparation areas. Adiseal is suitable and has been certified ISEGA to show it’s suitable for use in kitchens and other food preparation areas.



How to use construction adhesive

How to use construction adhesive

  1. Prepare the Surfaces

    Ensure that both the surfaces you plan to bond with the adhesive are clean, dry, and free from any contaminants such as dust, grease, or loose particles. Remove any old adhesive or finishes from the surfaces if necessary.

  2. Cut the Cartridge

    If you are using a cartridge-based construction adhesive, use a utility knife to cut off the tip of the cartridge. The size of the opening will depend on the desired bead size and the project requirements.

  3. Apply the Adhesive

    Squeeze the trigger of the caulking gun or adhesive applicator to start applying the adhesive in a continuous bead along the surface.

  4. Press Surfaces Together

    Press the two material surfaces firmly together. Apply even pressure to ensure good contact between the adhesive and both surfaces. Consider using clamps or other means to hold the surfaces in place while the adhesive cures, if necessary.

  5. Clean Excess Adhesive

    Use a clean cloth or a putty knife to remove any excess adhesive that may have squeezed out from the bond line.

  6. Curing Time

    Allow the product to cure as per the manufacturer’s instructions. The curing time can vary depending on factors such as temperature, humidity, and the specific adhesive used. Avoid subjecting the bonded assembly to stress or load until the adhesive has fully cured.

Tip: To store Adiseal once opened, leave about 1cm worth of product out of the nozzle and store the tube upright in a cool dry place. Adiseal requires moisture for it to cure. The exposed part out of the nozzle will cure creating a cap. To re-use Adiseal, pull the cured part out or cut the nozzle until the uncured part is reached.



Construction adhesive for concrete

Adiseal is a versatile construction adhesive for concrete surfaces. It doesn’t necessitate sealing the concrete beforehand, as it bonds directly to porous concrete. Our concrete demonstration shows its heavy duty adhesive strength in attaching different materials to concrete.


Construction adhesive demonstration block. Concrete block with different materials stuck to it including metal, wood, plastic and other items.
Demonstration of heavy duty construction adhesive on concrete block.

On the concrete demo block, no primer was used to seal it. It was simply cleaned thoroughly by brushing it. A fine brush like a painting brush helps remove fine dust.

Construction adhesive for stone

Adiseal construction adhesive forms a strong, waterproof bond on various stone surfaces such as marble and granite to name a few. Additionally, Adiseal Hi-Grab boasts a strong heavy-duty instant grab, securely holding stones without requiring temporary supports while the adhesive sets. There is also no need to seal the stones prior to application as Adiseal does not bleed into or stain the stone.


Data Sheets



Adiseal is available in the following colours:

It can also be manufactured in any RAL colour.


Construction adhesive UK

To buy construction adhesive in the UK, please contact us for your nearest stockist. For customers outside of the UK, you can buy Adiseal construction adhesive from your local distributor. If there is no distributor in your country, visit www.guglue.com for worldwide shipping.



Frequently asked questions about construction adhesive

What construction adhesive is best?

Adiseal has been shown to be the strongest construction adhesive in an independent adhesive strength test carried out by Ultimate Handyman. Adiseal was shown to be over 3 times stronger than the next best product.

Can construction adhesives be used for outdoor applications?

Yes, there are construction adhesives specifically designed for outdoor use. These adhesives are formulated to withstand exposure to moisture, temperature variations, and other environmental factors.

Does construction adhesive get hard?

The hardness of construction adhesive depends on the type of product. Adiseal has been formulated to stay permanently flexible. This gives it the advantage of providing a durable and non-brittle bond.

Can you use construction adhesive as glue?

It is possible to use construction adhesive as glue if the surface area there it needs to be applied to is large. As a general rule, it is better to use glue for bonding items with small surface areas and adhesive on large surface areas.

What is the strongest construction adhesive?

Adiseal has been shown to be the strongest construction adhesive in an independent adhesive strength test. Adiseal was found to be over 3 times stronger than any other adhesive tested and the the adhesive bond did not break at even over 3123 psi whereas all other adhesives broke at 1115 psi or less.

What is the strongest construction adhesive for stone?

Adiseal has been shown to be the strongest construction adhesive in an independent adhesive strength test. It will provide a strong, flexible, waterproof and highly durable adhesive bond on stone of different types like marble and granite to name a few. Adiseal Hi-Grab also has a strong heavy-duty instant grab to hold the stone in place, eliminating the need for temporary supports until the adhesive cures.

Is construction adhesive stronger than screws?

In an independent adhesive strength test, when testing the adhesive bond strength on Adiseal, it did not break at over 3123 psi. In fact the screws holding the test rig down to a table started to rip out before the adhesive could break, forcing the test on Adiseal to be stopped prematurely as it was even stronger than the screws.



Suhail Matadar has extensive experience in the construction industry as an electrician, involved in installing, inspecting, and testing electrical systems in various projects. He excelled in sales, working for a major UK wholesaler, selling construction products to professionals and the DIY market. Suhail's background includes working at a leading home emergency repair company dealing with trades people. With a BEng (Hons) degree in Electronic Engineering, Suhail has worked with PLCs in the nuclear fuel manufacturing industry. During his studies, he gained practical experience at a chemical manufacturing company known for producing award-winning cleaning, hygiene, and livestock protection products for over a century. Currently, Suhail runs a global business specialising in supplying, researching, testing, and distributing chemical construction products like adhesives and sealants.