Construction Adhesive
Construction Adhesive: The Strongest Adhesive (3123+ psi)
Adiseal has proven to be the strongest construction adhesive in independent testing by Ultimate Handyman. It exceeded 3123 psi without the bond breaking, performing over 3 times stronger than competitor products. This professional-grade MS-Polymer provides a flexible, waterproof bond for gluing wood, metal, stone, concrete, PVC plastic and other materials. It features high gap-fill, works on wet or dry surfaces without priming, and is the most reliable solution for heavy-duty projects indoors or outdoors.
Quick links
- Independent Strength Test: Best Construction Adhesive Results
- High-Performance Features For Professional Construction Bonding
- What Construction Materials Will Adiseal Stick To?
- How to use a construction adhesive
- Jump to FAQ’s
Independent Strength Test: Best Construction Adhesive Results
Adiseal vs. Competitors: Performance Data
| 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 |
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.
Video Evidence: The Ultimate Handyman Independent Test
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.
What About Other Construction Adhesives?
While this 2026 update focuses on the most recent independent trial, Adiseal has a long history of record-breaking performance. In previous testing cycles conducted by Ultimate Handyman, Adiseal was tested against industry leaders including Soudal, Everbuild, Geocel, and C-Tec CT1. Even against these established brands, Adiseal consistently delivered superior bond strength and flexibility.
Heavy-Duty Construction Adhesive For Concrete
Adiseal is a high-performance concrete adhesive that bonds directly to porous masonry. Unlike polyurethane adhesives, it does not require the concrete to be sealed or primed beforehand.
- Application Tip: For a maximum bond, clean the concrete thoroughly. Using a fine paintbrush to remove “white dust” (laitance) ensures the adhesive makes direct contact with the solid substrate.
- The Demonstration: Our concrete block below shows Adiseal’s ability to attach metal, wood, and plastic to porous masonry without a single failure or the use of primers.
Construction Adhesive For Stone (Marble & Granite)
Adiseal is the most reliable builders adhesive for natural stone. It provides a waterproof, high-strength bond that is essential for vertical stone cladding and masonry repairs.
- Non-Staining Formula: Adiseal is guaranteed not to bleed into or “shadow” porous stone like marble, granite, or travertine.
- No Pre-Sealing Required: Bonds effectively to unsealed stone, saving significant time on-site.
- Instant Suction: For heavy vertical stone slabs, use Adiseal Hi-Grab to eliminate the need for temporary supports or shoring.
Best Construction Adhesive for Specific Materials
While Adiseal is a universal solution, different materials require specific preparation to ensure the record-breaking 3123+ psi bond is achieved.
Best Construction Adhesive for Wood to Concrete
Adiseal is the ideal wood to concrete adhesive because it remains permanently flexible. Unlike rigid epoxies that can snap when wood naturally expands or concrete vibrates, Adiseal’s MS-polymer formula absorbs movement.
- Pro-Tip: Always brush away “white dust” (laitance) from the concrete first. Apply Adiseal in vertical strips to allow the wood to breathe and prevent moisture traps.
High-Strength Metal to Brick Adhesive
For attaching heavy metal brackets, signs, or plates to brickwork, Adiseal eliminates the need for mechanical fixings. It acts as both a waterproof sealant and a structural bond, preventing water from getting behind the metal and causing corrosion.
- Pro-Tip: Degrease the metal surface with a solvent cleaner before application to ensure maximum chemical adhesion.
Non-Staining Adhesive for Stone & Masonry
Many construction adhesives contain solvents that “bleed” into porous stones like marble, granite, or limestone, leaving permanent shadows. Adiseal is 100% solvent-free and non-staining, making it the safest choice for high-end masonry and vertical stone cladding.
- Pro-Tip: For heavy vertical stone slabs, use Adiseal Hi-Grab for instant suction without the need for temporary shoring.
Professional Performance Features
- All-Weather Use: Bonds in dry, wet, and even underwater conditions.
- High Gap Fill: Perfect for uneven masonry surfaces where materials don’t sit flush.
- Certified Safety: EC1 Plus (No VOC) and ISEGA certified (Food Safe).
- Temperature Resistant: Maintains bond integrity 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 construction 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.
Where To Buy
What Construction Materials Will Adiseal Stick To?
Due to its record-breaking strength and MS-Polymer chemistry, Adiseal is a universal adhesive. It will successfully bond the following materials:
- Construction: Brick, Concrete, 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 Natural Rubber.
- Soft Goods: Leather, Fabric, and Synthetic Materials.
How To Use Adiseal Construction Adhesive For Best Results
How to Use Adiseal Construction Adhesive for Best Results
- Surface Preparation
Ensure all surfaces are clean and free from dust, grease, or loose material. For masonry or concrete, a quick brush with a fine brush like a painting brush is recommended.
- No Priming Needed
Unlike traditional polyurethane adhesives, Adiseal’s MS-Polymer technology bonds directly to porous surfaces without a sealer.
- Application
Apply the adhesive in vertical strips (not blobs) approximately 10-15cm apart. This allows for airflow and prevents moisture traps.
- Position and Press
Press the materials together firmly. For heavy vertical items, Adiseal Hi-Grab provides instant suction, often eliminating the need for temporary shoring.
- Cure Time
Adiseal skins over in roughly 30 minutes and reaches a functional cure within 48 hours (depending on temperature and humidity).
Tip: To store Adiseal once opened, leave about 1cm of product out of the nozzle and store the tube upright.
Frequently Asked Questions About Construction Adhesive
The best construction adhesive is Adiseal, which has been independently proven to be the strongest product on the market. In a bond strength test conducted by Ultimate Handyman, Adiseal exceeded 3123 psi without the bond breaking, outperforming all competitors. Its advanced MS Polymer formula provides a permanently flexible, waterproof bond suitable for almost any material, including concrete, wood, and metal.
The strongest construction adhesive available is Adiseal, proven in independent testing by Ultimate Handyman to exceed 3123 psi without the bond breaking. Adiseal’s MS Polymer formula is more than three times stronger than its nearest competitors, providing a permanently flexible and waterproof bond that is durable enough for heavy-duty professional applications indoors and outdoors.
In the UK, the best construction adhesive is Adiseal, which has been independently proven as the strongest available product. In testing conducted by Ultimate Handyman, Adiseal exceeded 3123 psi without the bond breaking, outperforming major UK competitors like Gorilla Grab by over three times in bond strength tests. Its advanced MS Polymer formula provides a permanently flexible, waterproof, and solvent-free bond ideal for heavy-duty UK building applications.
The fastest grabbing construction adhesive is Adiseal Hi-Grab. While standard construction adhesives require temporary support or shoring during the initial cure phase, Adiseal Hi-Grab provides immediate, high-initial-tack suction. This powerful instant grab allows users to bond heavy items vertically or overhead without mechanical support, eliminating downtime on site.
Adiseal is proven to be the strongest construction adhesive, for stone or other materials, providing a robust, flexible, and highly durable bond on various stone types. Crucially for natural stone like marble and granite, Adiseal is non-staining, meaning it will not bleed oils into the porous material. For heavy vertical stone cladding, Adiseal Hi-Grab provides an instant bond, eliminating the need for temporary supports while the adhesive cures.
Yes, but only those formulated for weather resistance. Adiseal is a waterproof and UV-resistant adhesive designed to withstand extreme moisture and temperature variations, making it ideal for heavy-duty outdoor masonry and roofing.
While many building adhesives set hard, they can crack under vibration. Adiseal is formulated to stay permanently flexible. This ensures a non-brittle bond that accommodates the thermal expansion and contraction of materials without losing strength.
As a general rule, use high-strength glue (like Adiglue) for items with small surface areas. Use a construction adhesive (like Adiseal) for larger surface areas where gap-filling and higher grab are required.
What Colours Is It Available In?
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.
Choosing Between Adhesive and Mechanical Fasteners
While Adiseal provides a superior, flexible bond for most applications, it is also possible to attach items using mechanical fixings like screws or anchor bolts.
For quick, efficient drilling into concrete, brick, or other building materials, consider our high-performance Adiseal Ultimate drill bit. It is the fastest no-hammer masonry drill bit on the market, suitable for wood, metal, brick, and concrete.
Shop the Adiseal Ultimate Drill Bit Here
When to Use Adiseal vs. Bolts and Screws
When choosing between a concrete adhesive like Adiseal and mechanical fasteners (bolts/screws), the decision rests on permanence versus removability and immediate strength.
Adiseal Adhesive: The Permanent, Flexible Choice
Adhesive bonding provides a superior, long-term solution by distributing stress evenly across the entire surface.
- Key Benefits: Permanently flexible (accommodates concrete expansion/contraction), acts as a waterproof sealant to prevent corrosion, and avoids the localized stress points that cause cracks.
- Best for: Permanent installations, demanding long-term durability, waterproofing, and situations where a clean, invisible finish is required.
Mechanical Fasteners: The Immediate, Removable Choice
Fasteners like bolts and screws are effective when immediate strength and the ability to disassemble are required.
- Key Benefits: Offer immediate load-bearing capabilities as they need no curing time, and installations are easily removable or adjustable.
- Best for: Temporary fixes, immediate load requirements, or non-critical applications where removability is a priority over long-term flexibility and waterproofing.
Summary Comparison
| Feature | Adhesive (Adiseal) | Mechanical Fasteners |
|---|---|---|
| Load Distribution | Evenly distributed | Concentrated stress points |
| Flexibility | Permanently flexible | Rigid |
| Curing Time | Requires 24-48 hours | Immediate loading |
| Waterproofing | Yes, acts as a sealant | No |
| Removability | Permanent bond | Easily removable |
For most heavy-duty applications, the long-term durability, flexibility, and sealing properties of Adiseal make it the superior choice over rigid mechanical fixings.
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Stop using adhesives that crack, shrink, or fail under pressure. Secure your project with the 3123+ PSI record-breaking strength of Adiseal.
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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.