Professional Construction Products

Developing high performance construction products through extensive research and testing.

Grab Adhesive

(Last Updated On: 24 September 2023)

Grab Adhesive: Adiseal Strongest in Test

Adiseal grab adhesive has been shown to be the strongest grab adhesive by an independent adhesive strength test by Ultimate Handyman. It provides a strong, flexible, waterproof and durable bond that also has the added advantage of grabbing materials quickly which can save time on labour. Adiseal outperforms competitor products for your bonding applications.


Strongest grab adhesive according to an independent test


What is the best grab adhesive?

To find out what the best grab adhesive is, Ultimate Handyman carried out an independent adhesive strength test. According to the test results, the best product was Adiseal. It blew away the competition and was too strong for even the test rig. The screws holding the test rig started to rip out before the adhesive bond of Adiseal could break forcing the test on Adiseal to be abandoned. When attempting to test Adiseal, the seal of the hydraulic ram also broke causing hydraulic fluid to leak. Adiseal was just too strong in the test.

Test results

In the adhesive bond strength test between hardwood and metal, Adiseal showed an astounding resistance to pressure, withstanding over 3123+ psi. In contrast, all other competitor products failed at 1115 psi or less, showing Adiseal to be over 3 times stronger than the nearest competitor product. The chart below clearly highlights Adiseal, boasting unparalleled strength in its performance.

best grab adhesive strength test results chart

Watch the video below of the test carried out by Ultimate Handyman.

Strongest adhesive strength test by Ultimate Handyman

Best grab adhesive test results table

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
Strongest grab adhesive strength test results.

“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.

Why use a grab adhesive

As most adhesives take some time to cure (set or dry), temporary supports may be required to hold items in place so that they don’t move away from the surface. This can increase the time to complete a job as a return to the job will be required to remove the temporary supports once the adhesive has cured. An adhesive with high initial grab has the possibility of eliminating the need to use temporary supports, saving time and money on labour costs in the process.

Even higher instant grab

Adiseal adhesive and sealant has high initial grab but for even more initial grab, try the Adiseal Hi-Grab adhesive.

Adiseal Hi-Grab is the ultimate instant grab adhesive designed to deliver heavy-duty power grab and bond strength. This waterproof adhesive boasts flexibility, making it ideal for both dry and wet applications, indoors and outdoors. Using the same pro-grade polymer technology as our Adiseal construction adhesive and sealant, Adiseal Hi-Grab takes instant grab to even greater heights. Its thicker consistency ensures superior initial holding power, surpassing even the performance of Adiseal adhesive and sealant.

For most adhesive bonding applications we recommend the Adiseal adhesive & sealant over the Adiseal Hi-Grab product. This is because the Adiseal Hi-Grab product is very thick and therefore requires a lot higher force to push 2 items close together. It also required a good quality caulking gun (sealant gun) to get the product out of the tube due to its thick formulation.

Adiseal Hi-Grab instant grab adhesive


Great grab adhesive on vertical surfaces

When trying to bond items to a vertical surface instead of a horizontal surface, items have a greater chance of sliding down the surface. This is due to the was gravity pulls down on the item and how the adhesive tries to resist it.

Adiseal Hi-Grab is ideal for bonding extra heavy items on vertical surfaces without the need to use temporary supports. Its superior grab prevents the item from sliding down the vertical surface. This can save time and money on labour costs.

Phenomenal Grab

Watch the superior phenomenal grab performance of Adiseal Hi-Grab in the video below.

Video of superior grab demonstration of Adiseal Hi-Grab instant grab adhesive.


High grab adhesive on concrete demonstration using Adiseal Hi-Grab instant grab adhesive.


Benefits of Adiseal Hi-Grab

There are many benefits of Adiseal Hi-Grab over other products. These include:

  • Ultimate instant grab
  • Extreme strength when cured
  • Works in dry, damp, wet & even underwater
  • Mould resistant
  • Over paintable (with most paints)
  • Waterproof adhesive
  • Non brittle (designed to remain permanently flexible)
  • UV resistant
  • Virtually odourless (no strong smells when using the product)
  • Isocyanate free
  • Solvent free (safe for sensitive materials like polystyrene and mirrors)
  • No shrinkage or cracking (provides a better adhesive bond)
  • Prevents fungal growth
  • Prevents bacteria growth
  • Good resistance to chemicals
  • EC1 Plus certified (no VOC)

Adiseal Hi-Grab is available in white colour in 290ml cartridges. To get it in any other RAL colour, please contact us.

Strongest grab adhesive in test


Which materials will it bond?

Adiseal adhesive sealant and Adiseal Hi-Grab will both successfully bond the following items:


How to use a grab adhesive

How to use a grab adhesive.

  1. Surface Preparation

    Ensure that the surfaces you plan to bond are clean, dry, and free from dust, grease, paint, or any contaminants. Cleaning the surfaces thoroughly is vital for a strong bond. On dusty surfaces like concrete, we recommend using a fine brush like a painting brush to remove fine dust.

  2. Cut the Nozzle

    If your grab adhesive comes in a tube, cut the nozzle to create an appropriate-sized opening. The size of the nozzle opening will determine the thickness of the adhesive bead.

  3. Load the Adhesive

    If your grab adhesive comes in a tube, insert it into a sealant gun (caulking gun) and make sure it is securely in place. If the product is thick then it may require a good quality sealant gun (caulking gun) to get the product out of the tube or cartridge.

  4. Apply the Adhesive

    Apply an even adhesive bead along one surface. Wider adhesive coverage ensures a stronger bond compared to limited coverage.

  5. Join the Surfaces

    Once the adhesive is applied, join the two surfaces together. Apply firm pressure to ensure good contact between the surfaces.

  6. Adjustment

    Certain products provide a brief adjustment time to align bonded items. Use this time to make necessary adjustments, and gently slide surfaces side to side for adhesive distribution, improving bonding.

  7. Curing Time

    Allow the adhesive to cure as per the manufacturer’s instructions. The curing time may vary depending on the specific adhesive and environmental conditions.

  8. Cleanup

    If there is any excess adhesive that squeezed out during bonding, clean it up using a suitable solvent or as directed by the adhesive manufacturer.

  9. Storage

    After use, seal the adhesive tube or cartridge tightly for future use, ensuring it remains in good condition.


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.


Where to buy grab adhesive

In the UK, to buy grab adhesive, please contact us for details of your local stockist. For other countries, our products can be purchased from www.guglue.com


Frequently Asked Questions About Instant Grab Adhesive

What materials can I bond with grab adhesive?

Grab adhesive is versatile and can bond various materials, including wood, metal, concrete, plastic, glass, and more.

Does grab adhesive work on both dry and wet surfaces?

Yes, some grab adhesives are designed to work on both dry and wet surfaces, making them suitable for various weather conditions.

How long does it take for grab adhesive to cure?

The curing time of grab adhesive varies depending on the specific product and environmental conditions. Typically, it can range from a few minutes to several hours.

Is grab adhesive suitable for outdoor use?

Yes, many grab adhesives are designed to be weather-resistant and can withstand outdoor conditions, including exposure to rain and UV rays.

Which grab adhesive is strongest?

Adiseal has been shown to be the strongest grab adhesive available in an independent adhesive strength test. It provides superior bonding strength for various materials and applications. Its high initial grip and durability make it a reliable choice for heavy-duty bonding.

Can I use grab adhesive on porous surfaces like wood or concrete?

Yes most of these products are often effective on porous surfaces, but the adhesion strength may vary. Some products are specifically designed for use on porous materials.

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.