Professional Construction Products

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Black Adhesive

Black Adhesive Sealant: Strong Flexible Construction Grab Bond

Adiseal black adhesive stands out as a top-performing construction adhesive and sealant, proving its strength through independent testing. Renowned for its high-strength, flexibility, waterproofing, and durability, Adiseal black adhesive excels in various bonding applications. Its weatherproof nature makes it equally effective for both interior and exterior adhesive bonding and sealing purposes.


Best and strongest black adhesive sealant in test



Adhesive Strength Test

During a construction adhesive strength test conducted by Ultimate Handyman, various leading adhesive brands were pitted against each other using a hydraulic ram. The challenge involved applying each adhesive between wood and metal surfaces and measuring the breaking point after curing.

Adiseal emerged as the star performer, stealing the show with a bond strength that surpassed the closest competitor by an impressive 300%! The sheer strength of Adiseal not only outperformed the competition but also exerted such force that it caused the test rig itself to fail. The pressure from the hydraulic ram led to the screws of the test rig ripping out before the adhesive could break.

This unexpected outcome vividly showcases Adiseal’s unparalleled adhesive capabilities. Despite the need to halt the test for the rig’s safety, it unequivocally establishes Adiseal as:

  • Over 3 times stronger than its closest competitor
  • Possessing a bond so robust that it surpassed the limits of the test rig.


Strongest black adhesive proven by an independent test.


Test results

In independent adhesive bond tests conducted by Ultimate Handyman, Adiseal showcased remarkable strength, surpassing all other adhesives. While competitor products reached breaking points at or below 1115 psi, Adiseal exhibited exceptional resilience, enduring pressures that exceeded 3123 psi. The accompanying chart vividly illustrates Adiseal’s unparalleled performance.

strongest adhesive strength test results chart




Strong 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.




Adiseal black adhesive will successfully stick the following items:


Concrete demonstration block including  sticking plastic, metal, wood and marble to concrete.

Different items stuck to a concrete block with Adiseal strong construction adhesive.

How to use black adhesive

How to use black adhesive

  1. Prepare the Surfaces

    Ensure that the surfaces to be bonded are clean, dry, and free from dust, grease, or debris. Clean the surfaces thoroughly using an appropriate cleaner or solvent.

  2. Apply the Adhesive

    Apply a thin, even layer of the black adhesive to one of the surfaces you want to bond. Covering more surface area will result in a better bond.

  3. Join the Surfaces

    Press the two surfaces together, ensuring that the adhesive is in contact with both. Apply firm and even pressure to promote a strong bond.

  4. Secure the Bond

    Depending on the adhesive type and the materials being bonded, you might need to use clamps or other forms of support to hold the surfaces together during the curing process.

  5. Curing Time

    Allow the adhesive to cure for the recommended duration specified by the product instructions. Curing times can vary, and factors such as temperature and humidity may influence the process.

  6. Clean Excess Adhesive

    Remove any excess adhesive that may have squeezed out of the sides during the bonding process.

Benefits of Adiseal black adhesive sealant

Other benefits of Adiseal include:


Best adhesive & sealant in independent test.



Data Sheets


Other colours

Adiseal adhesive and sealant is also available in the following colours:



Where to buy black adhesive

In the UK, to buy black 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 black adhesive

Is black adhesive weather-resistant?

Adiseal black adhesive is designed to be weather-resistant, offering durability and protection against the elements.

Does black adhesive work on different materials?

Yes, Adiseal black adhesive is versatile and can adhere to a variety of materials, including metal, plastic, wood, marble, granite, slate, stone and more.

Is black adhesive flexible after curing?

Adiseal black adhesive maintains flexibility after curing, allowing for movement without compromising the bond.

Can black adhesive be used for both interior and exterior applications?

Yes Adiseal black adhesive is suitable for both interior and exterior projects, providing a reliable bond in various settings.


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.