Waterproof Adhesive
Waterproof Adhesive & Sealant: Adiseal Strongest in Test (3123+ psi)
Adiseal is the record-breaking strongest waterproof adhesive and sealant, proven in independent testing to withstand pressures exceeding 3,123 psi—over three times the strength of leading competitors. This high-performance MS polymer provides a bond that works in dry, wet, and even fully submerged underwater conditions without the need to drain the area first. Ideal for emergency gutter repairs and heavy-duty construction, Adiseal’s solvent-free, ISEGA certified formula ensures zero shrinkage or cracking while maintaining permanent flexibility and elite UV resistance. Whether you are sealing a leaking roof in heavy rain or bonding metal to concrete, Adiseal delivers a solution that outlasts traditional silicones and grab adhesives.
Quick links
- Why use Adiseal waterproof adhesive
- What is the strongest waterproof adhesive
- Materials it can bond
- How to use a waterproof adhesive
Why Adiseal Is The Best Professional Waterproof Adhesive
While various construction glues can bond to masonry, most fail under extreme stress or moisture. Adiseal construction adhesive sealant stands apart by maintaining a high-tensile bond where traditional grab adhesives fail. Its MS-polymer formulation ensures that the bond remains permanently flexible, preventing the ‘brittleness’ often seen in standard adhesives when exposed to concrete’s natural alkaline properties and thermal expansion.
Independent Strength Test Results: Adiseal vs. Competitors
To verify our performance claims, we look to independent testing conducted by Ultimate Handyman. In a controlled environment, various construction adhesives were tested to find the maximum pressure they could withstand before the bond failed. Adiseal was the only product to exceed 3123 psi, at which point the test was forced to stop because the testing rig itself began to break.
| Product Name | Max Strength (PSI) | Test Result |
|---|---|---|
| Adiseal | 3123+ psi | Bond Unbroken (Test Abandoned) |
| SupaBond | 1115 psi | Bond Failed |
| Tec 7 | 1016 psi | Bond Failed |
| HB42 | 942 psi | Bond Failed |
| Loctite PL Premium | 873 psi | Bond Failed |
| Gorilla Grab | 862 psi | Bond Failed |
| Bond It PU18 | 582 psi | Bond Failed |
| Bond It Save Nails | 411 psi | Bond Failed |
The Video Evidence
Watch the Independent Strength Test
As seen in the video, Adiseal outperformed the next best product by over 3 times. The bond was so strong that the test had to be abandoned to prevent damage to the heavy-duty test equipment.
Following the record-breaking results in the Ultimate Handyman independent trial, professional users shared their feedback on the performance of Adiseal:
- That Adiseal is phenomenal!
- That Adiseal is some stuff though, definitely need to get some of that bought!
- I instantly went looking for Adiseal!
- 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.
High-Performance Features For Water Resistant Bonding
While the record-breaking strength is undisputed, Adiseal is engineered for professional environments where conditions are rarely perfect:
- All-Weather Performance: Weatherproof adhesive and waterproof sealant, suitable for working in dry, wet, and even underwater. This makes it an ideal adhesive for concrete pipe repairs.
- No Priming Required: As long as the surface is clean of dust, grease, paint, or dirt, priming or sealing of the concrete should not be required when using Adiseal to bond.
- Non-Staining: It does not stain or bleed into concrete, stone, or masonry, ensuring a clean, professional finish.
- High Gap-Fill: Adiseal has very high gap fill properties, useful where there are gaps between the concrete and item that requires bonding.
- High Initial Grab: Features strong initial grab, meaning temporary supports may not be required while the adhesive cures. For even higher grab, the Adiseal Hi-Grab product is available.
- Eco-Friendly & Safe: EC1 Plus certified (No VOC), making it suitable as an indoor and outdoor adhesive sealant for concrete and other materials. Adiseal is also ISEGA certified making it is safe for use in food preparation areas.
- Permanent Flexibility: Concrete expands and contracts with temperature changes. Adiseal stays flexible, preventing the bond from becoming brittle or snapping over time.
- Temperature Range: Effective in temperatures ranging from -40°C to +100°C.
Adiseal Adhesive Sealant vs. Adiseal Hi-Grab
While both products offer the same record-breaking final bond strength, choosing the right version depends on your specific concrete project:
- Adiseal adhesive sealant: Best for applications where you need to move or “slide” the item into the perfect position before it sets. It has high gap-fill and is the best choice for general bonding.
- Adiseal Hi-Grab: Best for heavy vertical items (like large stone wall claddings or heavy signs). It provides instant suction, usually eliminating the need for temporary supports or shoring while the adhesive cures.
Mould resistance
Where a waterproof adhesive is exposed to water, there is a chance of mould growth on top of the adhesive. Adiseal has high mould resistance. We tested the mould resistance of adhesives by leaving them submerged in water for a few days. As can be seen in the image below, Adiseal remained mould free even after 90 days of continuous submersion in the same water.
Clear waterproof adhesive
Adiseal ultra clear waterproof adhesive is a truly transparent waterproof adhesive, unlike other clear adhesives that turn out to be cloudy instead. It also maintains its clarity when exposed to water.
Benefits of Adiseal
What Materials Will Adiseal Stick To?
Due to its record-breaking strength and MS-Polymer chemistry, Adiseal is a universal waterproof adhesive glue. It will successfully bond the following materials:
- Construction: Brick, Masonry, Cement, Breeze block, and Stone.
- Metals: Steel, Copper, Iron, Brass, Lead, Aluminum and other metals.
- Natural Stone: Granite, Marble, Travertine, Slate and other stone.
- Interiors: Glass, Mirrors (non-staining), Ceramic, and Tiles.
- Versatile Materials: Wood, Most Plastics, Fibreglass, Polystyrene, and Rubber.
- Soft Goods: Leather, Fabric, and Synthetic Materials.
Where To Buy
How to use a waterproof adhesive
How to use a waterproof adhesive
- Surface Preparation
Thoroughly clean and dry the surfaces to be bonded. Remove any dust, dirt, grease, or debris that could hinder adhesion. Smooth or roughen the surfaces if needed for better bonding.
- Apply the Adhesive
Apply the adhesive to the material that requires bonding. Covering more surface area with the waterproof adhesive will provide a better bond.
- Join the Surfaces
Carefully align the surfaces to be bonded and press them firmly together. Ensure there is full contact between the adhesive and the materials to achieve a strong bond. Sliding the items slightly before the adhesive cures can help spread the adhesive.
- Curing Time
Allow the adhesive to cure according to the manufacturer’s instructions. This may vary depending on the type of adhesive used. Avoid stressing or moving the bonded materials during the curing process.
- Temporary support (not always necessary)
If the items do not stay in place until the waterproof adhesive cures then use temporary supports to hold them in place.
- Clean Excess Adhesive
Wipe off any excess adhesive that may have squeezed out during bonding. Use a suitable solvent or adhesive remover if necessary.
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.
Colours
Adiseal adhesive and sealant is available in the following colours:
- White adhesive and white sealant
- Black adhesive and black sealant
- Grey adhesive and grey sealant
- Clear adhesive and clear sealant
- Brown adhesive and brown sealant
Adiseal can also be manufactured in any RAL colour.
Where to buy
In the UK, to buy waterproof adhesive, please contact us for details of your local stockist.
For other countries, you can buy from www.guglue.com
Frequently asked questions about waterproof adhesive
A waterproof adhesive is a type of adhesive that is designed to form a strong and durable bond even when exposed to water or moisture. It is commonly used in applications where moisture resistance is essential, such as in outdoor projects, marine environments, and wet areas.
Waterproof adhesives typically have special formulations that repel water and resist degradation when exposed to moisture. They create a chemical bond between surfaces, preventing water from penetrating and compromising the bond.
Some waterproof adhesives are formulated to cure and adhere even when submerged in water. These underwater adhesives are often used in swimming pool repairs, aquarium assembly, and marine applications.
Not all waterproof adhesives are suitable for all materials. Some adhesives work better on certain surfaces than others. It’s essential to choose an adhesive that is compatible with the materials you are bonding.
Yes, “waterproof glue” and “waterproof adhesive” are frequently used interchangeably. They both describe an adhesive or bonding material designed to resist water and maintain its integrity even when exposed to moisture or submerged in water. These adhesives find use in various applications, such as sealing and bonding materials in wet or damp environments, including outdoor projects, marine applications, and plumbing fixtures.
Adiseal is a high-performance waterproof adhesive for wet surfaces as well as dry surfaces. It provides a strong, flexible, weatherproof and durable bond on wet surfaces and dry ones.
Yes, Adiseal is a high-performance MS polymer that cures fully even when submerged, making it ideal for marine and pool repairs.
In independent testing, Adiseal was proven the strongest, resisting over 3,123 psi—triple the strength of standard competitors.
Suhail Matadar
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.