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Grab Adhesive

Best Grab Adhesive: Strongest Bond

Adiseal grab adhesive is a high-performance product that provides a strong and heavy-duty bond. It has been shown to be the strongest grab adhesive in an independent grab adhesive strength test. Adiseal provides a strong, flexible, waterproof, gap-filling and durable bond that also has the added advantage of grabbing materials quickly which can potentially save time and money on labour costs.

Best grab adhesive sealant in test

What is the best grab adhesive?

Ultimate Handyman conducted an independent adhesive strength test to determine the best grab adhesive. The results crowned Adiseal as the top performer. Adiseal’s strong adhesive bond exceeded the test rig’s capacity, causing the screws holding it to begin to rip out before Adiseal’s bond broke. The test on Adiseal had to be abandoned.

Strongest grab adhesive according to an independent test

Test results

In the adhesive bond strength test between wood and metal, Adiseal demonstrated remarkable resilience, enduring pressures exceeding 3123+ psi. In contrast, all other competitors failed at 1115 psi or lower, making Adiseal more than three times stronger than the closest rival. The chart below vividly underscores Adiseal’s exceptional strength.

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
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.

Higher instant grab hold

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 hold adhesive 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 suggest using Adiseal adhesive & sealant over Adiseal Hi-Grab. This preference arises because Adiseal Hi-Grab is notably thick, demanding greater force to bring two items together and necessitating a high-quality caulking gun (sealant gun) for smooth dispensing due to its thickness.

Adiseal Hi-Grab instant grab adhesive


Great grab adhesive on vertical surfaces

When bonding items vertically, the risk of downward sliding increases due to gravity pulling the item down while the adhesive resists. Adiseal Hi-Grab excels in bonding heavy items on vertical surfaces, eliminating the need for temporary supports. Its outstanding grip prevents downward movement, resulting in time and labour cost savings.

Phenomenal Grab

Watch the superior 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)
  • Indoor and outdoor adhesive sealant

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

Strongest 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

    For a robust bond, prepare surfaces by ensuring they are clean, dry, and free from dust, grease, paint, or contaminants. Use a fine brush, such as a paintbrush, to remove fine dust on surfaces like concrete.

  2. Cut the Nozzle

    If your product 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. Apply the Adhesive

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

  4. Join the Surfaces

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

  5. 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.

  6. 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.

  7. 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.

  8. 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?

Some products are designed to work on both dry and wet surfaces, making them suitable for various weather conditions.

Is grab adhesive suitable for outdoor use?

Some grab adhesives like Adiseal 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.

Which grab adhesive is best?

Adiseal has been shown to the the strongest products in an independent test. In the test, Adiseal was over 3 times stronger than the next best product. It was even too strong for the test rig as the screws holding the test rig down started to rip out forcing the test on Adiseal to be stopped.

What is the strongest grab adhesive UK?

Adiseal has been shown to be the strongest grab adhesive in an independent adhesive strength test. It was over 3 times stronger than any other product that was tested. Adiseal did not break at even over 3123 psi whereas all other products broke at 1115 psi or less.

What is the best grab adhesive for outside?

Adiseal provides a strong, flexible, UV resistant & waterproof adhesive bond outside as well as inside. It has been shown to be the strongest grab adhesive in an independent adhesive strength test. Adiseal was over 3 times stronger than the next best product.

What is the best grab adhesive for outdoors?

Adiseal has been shown to be the strongest adhesive in an independent adhesive strength test. It is weatherproof making it ideal for use outdoors. Adiseal is waterproof, flexible, UV resistant and durable.

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.