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Heavy Duty Adhesive

Heavy Duty Adhesive: Adiseal Strong Construction Bond

Adiseal heavy duty adhesive has been shown to be the strongest adhesive in an independent adhesive strength test. The test carried out by Ultimate Handyman showed Adiseal to be a lot stronger than other adhesives with it being over 3 times stronger than the nearest competitor. Adiseal heavy duty construction grab adhesive provides a strong, flexible, waterproof and durable bond on many different building materials.

Best heavy duty construction grab adhesive in independent test.

Adhesive Strength Test

Ultimate Handyman conducted independent adhesive strength tests on various adhesives, applying them between wood and metal surfaces and measuring their breaking points using a hydraulic ram.

Adiseal heavy duty adhesive demonstrated exceptional strength, surpassing the nearest competitor by over three times. Its strength was so remarkable that it began to affect the test rig’s screws, causing them to tear out due to the pressure exerted by the hydraulic ram. As a result, the test on Adiseal had to be terminated.

Strongest heavy duty adhesive

Test results

In the bond strength test between hardwood and metal, Adiseal endured an impressive pressure exceeding 3123+ psi, whereas all other adhesives failed at 1115 psi or lower. The chart below demonstrates Adiseal’s exceptional performance in the adhesive strength test.

strongest adhesive strength test results chart

Strongest heavy duty adhesive strength test by Ultimate Handyman

Strongest adhesive strength 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 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.

How to use a heavy duty adhesive

How to use a heavy duty adhesive

  1. Surface Preparation

    Ensure surfaces are clean, dry, and free from contaminants like dust or grease. Remove any old adhesive or finishes if needed.

  2. Application

    Apply the adhesive to one of the surfaces in a consistent manner, following the manufacturer’s instructions regarding quantity and coverage.

  3. Joining Surfaces

    Press the two surfaces together firmly. Apply even pressure to ensure proper contact between the adhesive and both surfaces. Clamps or supports might be used if necessary to hold the surfaces in place while the adhesive sets.

  4. Curing Time

    Allow the adhesive to cure completely. The curing time can vary based on factors like temperature, humidity, and the specific adhesive used. Avoid subjecting the bonded surfaces to stress or load until the adhesive has fully cured.

Adiseal vs Gorilla Heavy Duty Grab Adhesive

During thorough testing conducted by Ultimate Handyman, Gorilla Heavy Duty Grab Adhesive underwent rigorous examination alongside Adiseal. In the metal-to-metal adhesive strength test, Gorilla Grab Adhesive fractured at 166 psi, while Adiseal surpassed it, breaking impressively at 245 psi. In the wood-to-metal adhesive strength test, Gorilla Grab Adhesive fractured at 862 psi, while Adiseal excelled, reaching an astonishing 3123 psi without any signs of breaking.

These independent tests firmly demonstrate Adiseal’s superior strong adhesive bond in both metal-to-metal and wood-to-metal applications when compared to Gorilla Grab Adhesive, solidifying Adiseal as the ultimate choice for outstanding adhesive strength and unmatched performance.


Adiseal heavy duty adhesive will successfully stick the following items:

Sticking item to concrete block including plastic, metal, wood

Different items stuck to a concrete block with Adiseal heavy duty adhesive

Benefits of Adiseal

Other benefits of Adiseal include:

Strongest adhesive & sealant in independent test.

Extra heavy duty adhesive

Adiseal heavy duty builders adhesive has high initial grab but for even more instant grab, use the Adiseal Hi-Grab extra heavy duty adhesive. Although the adhesive bond strength of both products is similar, for most adhesive applications we recommend the Adiseal products over the Hi-Grab product. The reason for this is because the Hi-Grab product is a thick product so requires a lot higher force to push the 2 surfaces together.

Data Sheets


Adiseal is available in numerous colours including:

Where to buy heavy duty adhesive

In the UK, to buy heavy duty adhesive, please contact us for details of your local stockist. To buy Adiseal products in the USA, Canada, France, Australia or any other country, visit https://guglue.com/ who can post to other countries.

Frequently asked questions about heavy duty adhesive

What is the best glue to hold something heavy?

Adiseal has been shown to be the strongest adhesive in an independent adhesive strength test. It finished over 3 times stronger than the next best product and was even too strong for the screws of the test rig.

Is Gorilla grab adhesive any good?

Although Gorilla grab is a good product, Adiseal has been shown to be stronger than Gorilla grab adhesive in an independent adhesive strength test. Adiseal has been shown to have stronger grab as well as be over 3 times stronger than Gorilla grab adhesive.

How strong is Gorilla Grab adhesive?

In an independent adhesive strength test by Ultimate Handyman, the adhesive bond on Gorilla Grab adhesive was shown to break at 862 psi whereas Adiseal heavy duty adhesive went over 3123 psi and still did not break.

What surfaces can I bond with heavy-duty adhesive?

Heavy-duty adhesives can bond various materials like metal, wood, concrete, plastic, glass, and more.

Can heavy-duty adhesive be used outdoors?

Adiseal heavy duty construction grab adhesive is weatherproof so it can be use both indoors and outdoors.

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.