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Professional Construction Products

Developing high performance construction products through extensive research and testing.

Instant Grab Adhesive

 

Which Instant Grab Adhesive Provides the Fastest Hold?

Adiseal Hi-Grab instant grab adhesive provides a fast, heavy-duty immediate hold, often eliminating the need for temporary supports or propping when attempting to bond items. Formulated with professional-grade hybrid polymers, this high-viscosity, high tack adhesive prevents heavy objects from sliding while curing into a permanently flexible, 100% waterproof bond that works indoors, outdoors, and even underwater.

  • Fastest Instant Hold: Grips heavy items immediately without sliding, saving time and labour costs.
  • All-Weather Application: Works seamlessly in dry, wet, and even fully underwater environments.
  • Environmentally Safe Formula: Solvent-free, virtually odourless, EC1 Plus certified for zero VOCs, and completely safe for sensitive materials like mirrors and polystyrene.
  • Flexible Durability: Cures into a permanently flexible, non-brittle bond that is fully UV-resistant and over-paintable.
  • No Surface Bleeding: Advanced anti-stain technology ensures the formula will not bleed into natural stone, marble, or masonry.

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Adiseal Hi-Grab instant grab adhesive


Why use instant grab adhesives?

Standard construction glues require a lengthy curing window before achieving reliable structural strength. During this initial phase, gravity inevitably forces heavy materials to sag or drift away from the wall. To prevent this shifting, installers are traditionally forced to build temporary timber props or use mechanical fixings to hold the assembly in place until the chemical connection sets.

These auxiliary supports then have to be dismantled once the adhesive has fully cured. For trade professionals, this double-handling adds unnecessary hours to a project and often requires an expensive second trip to the job site. Opting for a high-viscosity adhesive with immediate, extra-high initial tack completely bypasses this entire step—saving significant time, reducing hassle, and slashing overall labor costs.

  

Adiseal Hi-Grab instant grab adhesive

Adiseal Hi-Grab heavy-duty instant hold adhesive utilizes the advanced hybrid polymer technology found in our record-breaking flagship Adiseal adhesive sealant, but re-engineered with vastly superior initial suction power.

To evaluate its performance, Ultimate Handyman conducted rigorous, independent destructive testing comparing the market’s leading brands. The results were definitive: Adiseal delivered a final bond over three times stronger than its closest competitor. In fact, the ultimate load threshold was so immense it surpassed the physical limits of the equipment itself—the tension began shearing the framework before the chemical bond could fail. The comparison chart below outlines the exact wood-to-metal tensile strength thresholds recorded during the evaluation.

strongest adhesive strength test results chart

Best adhesive strength test by Ultimate Handyman

Best adhesive strength test results table

Product NameMax Strength (PSI)Test Result
Adiseal3123+ psiBond Unbroken (Test Abandoned)
SupaBond1115 psiBond Failed
Tec 71016 psiBond Failed
HB42942 psiBond Failed
Loctite PL Premium873 psiBond Failed
Gorilla Grab862 psiBond Failed
Bond It PU18582 psiBond Failed
Bond It Save Nails411 psiBond Failed
Strongest adhesive test results table

“That is actually unbelievable!”

Ultimate Handyman

Testimonials

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.



 

Benefits of Adiseal Hi-Grab instant hold adhesive

While the record-breaking strength is undisputed, Adiseal Hi-Grab is engineered for professional environments where conditions are rarely perfect:

Environmental & Weather Resistance

FeatureProfessional Benefit
All-Weather UseWeatherproof adhesive works in dry, wet, and even fully submerged underwater conditions.
100% WaterproofProvides a total waterproof bond.
Extreme TemperatureRemains stable and effective from -40°C to +100°C.
UV ResistanceHigh resistance to UV rays, making it ideal for all outdoor applications.
Resists MouldResists mould and prevents fungal and bacteria growth over time.
Chemical ResistanceOffers good resistance to chemicals and environmental stressors.


Advanced Bonding & Application Mechanics

FeatureProfessional Benefit
High Initial GrabAdiseal adhesive sealant provides powerful suction on contact (for even more grab, use Adiseal Hi-Grab).
High Gap-FillActs as an excellent gap filler adhesive for uneven or irregular surfaces.
Permanent FlexibilityNon-brittle formula remains flexible to accommodate movement.
Zero ShrinkageDoes not shrink or crack, ensuring a better, longer-lasting seal.
Primer-Free BondingEliminates the need for primers on clean, dust-free surfaces.
Zero StainingAdvanced formula will not bleed into porous stone, marble, or masonry.
Indoor Or Outdoor UseProvides high quality bonds in interior or exterior applications. Ideal for use as an exterior masonry adhesive.
Industrial StrengthHeavy-duty performance for both indoor and outdoor construction.


Safety, Certifications & Finishing

FeatureProfessional Benefit
Over-PaintableCan be painted over with most (non-oil based) paints. Mix paint into Adiseal Ultra Clear for custom colours.
Safety-First FormulaIsocyanate-free and solvent-free; safe for use on sensitive materials.
Low OdourVirtually odourless formula for a more pleasant application experience.
EC1 Plus CertifiedRated for very low emissions (No VOCs) for indoor air quality.
ISEGA CertifiedSafety certification for use in food preparation areas.

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

Strongest adhesive in test

 

 

Instant grab adhesive hold performance demonstration

Watch the video below to see the exceptional initial grab and structural capacity of Adiseal Hi-Grab in action.

To push the formula to its absolute limits, we conducted a destructive demonstration using heavy 32 kg concrete blocks. Rather than applying the paste to the wide, flat face of the masonry, we intentionally applied a minimal amount to the narrowest edge to dramatically reduce the bonding surface area. Despite this extreme leverage and minimal contact zone, the two concrete slabs fused together instantly upon contact without sliding, slipping, or separating.

Demonstration of Adiseal Hi-Grab.

 

 

High grab adhesive on concrete demonstration using Adiseal Hi-Grab instant grab adhesive.
High instant hold adhesive demonstration.

 


 

Bonding items with Adiseal Hi-Grab

Adiseal Hi-Grab is a universal MS polymer adhesive engineered to bond virtually most materials. It replaces the need for specialized wood glues, masonry adhesives, and plastic glues.

Surface CategoryCompatible MaterialsProfessional Application
Masonry & StoneConcrete, Brick, Granite, Marble, Slate, Limestone, TravertineIdeal for paving, wall capping, and non-staining stone cladding.
MetalsSteel, Aluminium, Lead, Copper, Iron, ZincPerfect for gutter repairs, flashing, and structural metal-to-concrete bonding.
Plastics & SyntheticsPVC, ABS, Polycarbonate, Fibreglass, GRP, PolystyreneUsed for roofing sheets, window frames, and plumbing fixtures.
Wood & TimberHardwood, Softwood, MDF, Plywood, ChipboardProvides a waterproof bond that won’t rot or weaken in damp environments.
Glass & CeramicsClear Glass, Mirrors, Porcelain, Tiles, QuartzSecurely bonds mirrors (non-corrosive) and kitchen/bathroom tiles.
Roofing MaterialsFelt, Asphalt, EPDM, Bitumen, Shingles, Rubber (natural)Instant emergency leak repair on major roofing substrates.

Why Adiseal Bonds Better to Different Materials:

  • Non-Porous Excellence: Unlike water-based adhesives, Adiseal cures via atmospheric moisture, allowing it to bond two non-porous surfaces (like metal to glass) effectively.
  • Anti-Stain Technology: Many adhesives « bleed » oils into stone or marble. Adiseal’s chemically inert formula ensures zero migration into porous materials.
  • Vibration Resistance: On materials prone to movement (like metal roofing or wood floors), Adiseal acts as a shock absorber, maintaining the bond during thermal expansion.

While Adiseal can bond to Bakelite, its smooth surface may require sanding with fine-grit sandpaper to create a mechanical « key » for the adhesive. This is recommended for all smooth surface materials.

Gluing items to concrete demonstration block with a concrete adhesive glue. Materials stuck to concrete block include plastic, metal, wood and other items.
Adhesive on concrete demonstration block.


What materials does it not work on?

While Adiseal Hi-Grab is highly versatile, it does not adhere well to low surface energy (LSE) plastics like polypropylene (PP), polyethylene (PE), and polytetrafluoroethylene (PTFE/Teflon).

Key Materials to Avoid:

  • LSE Plastics: Polypropylene (PP), Polyethylene (PE), Nylon (Polyamide) and Polythene.
  • Non-Stick Surfaces: PTFE (Teflon).
  • Contaminants: Asphalt, oils, and existing silicone residue.
  • Incompatible Adhesives: Uncured polyurethane or silicone-based products.

 

 

 

How to use instant grab adhesive

How to use instant grab adhesive.

  1. Prepare the surfaces

    Ensure all bonding surfaces are completely clean, dry, and free from dust, grease, or failing historic sealants.

  2. Cut the tip

    Trim the cartridge tip cleanly to match your desired bead width. Due to the high viscosity of true instant-hold formulas, always use a high-ratio, professional caulking gun.

  3. Apply the adhesive

    Extrude the adhesive evenly onto one surface. Avoid over-application to prevent excessive squeeze-out.

  4. Join the surfaces

    Press the two items firmly together with a slight twisting motion to evenly distribute the hybrid polymer. Apply firm pressure for 3–5 seconds to fully lock the initial suction grab.

  5. Clean up & cure

    Immediately scrape away any excess squeeze-out. Allow the assembly to cure fully via atmospheric moisture.

 

Tip: To store an opened cartridge, purge roughly 1cm of adhesive out of the nozzle tip and store the tube upright in a cool, dry place. The exposed adhesive will absorb moisture, curing into a solid, airtight plug. When you need to reuse the tube, simply pull the cured plug out with pliers or trim the nozzle down slightly to access the fresh, uncured adhesive below.

 

 

Where to buy instant grab adhesive

In the UK, to buy instant grab adhesive, please contact us for details of your local stockist. For other countries, our products can be purchased from www.guglue.com

There may also be a distributor for your country or an opportunity to become our distributor. Contact us for more information.

 

 

Data Sheets

 

 


 

Frequently Asked Questions About Instant Grab Adhesive

What is the difference between grab adhesive and instant grab adhesive?

Grab adhesives may offer less initial grip than products with instant grab. In situations of insufficient initial strength, temporary supports might be necessary until the adhesive reaches its maximum holding power during curing. This issue is more noticeable on vertical surfaces where items can slide down.

What are the advantages of using instant grab adhesives?

They provide multiple benefits, such as quick bonding, no need for temporary supports, and immediate handling of bonded items. They are generally thicker, ensuring strong initial grip and bonding strength.

Are instant grab adhesives waterproof?

Some products like Adiseal Hi-Grab are designed to be waterproof, making them suitable for both indoor and outdoor applications. They can withstand exposure to moisture, ensuring a reliable bond even in damp or wet environments.

Can instant grab adhesives be used outdoors?

Yes, there are outdoor adhesives designed to endure moisture, UV radiation, temperature fluctuations, and outdoor elements. Adiseal is weatherproof meaning it is suitable for both indoors as well as outdoors.

What is the fastest grab adhesive?

Adiseal Hi-Grab provides extremely fast grab and holds an incredibly high weight without the item moving or falling. This saves time and money on labour costs as it eliminates the use of temporary supports.

Is there an instant grab adhesive?

Adiseal Hi-Grab is an adhesive with extra high grab and powerful strong bond strength.

What is the highest grab adhesive?

Adiseal Hi-Grab adhesive provides superior grab when attempting to bond heavy items. It’s extra strong heavy-duty grab eliminates the need for temporary supports in many bonding applications. Adiseal Hi-Grab has been shown to have higher grab than other adhesives on the market.

 

 

 

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 construction products like adhesives, sealants and drill bits.