Sika Stixall Extreme Power Sealant and Adhesive (290ml)

By Sika · Model: Stixall · Fixings & Adhesives

High-strength hybrid polymer adhesive and sealant that bonds virtually any material in wet or dry conditions, including underwater.

Bonds to virtually all building materials including wet surfaces
Can be applied and cures underwater
High grab strength reduces or eliminates the need for mechanical fixings
Remains permanently flexible — absorbs movement and vibration
Paintable, sandable and compatible with most finishes
Solvent-free and isocyanate-free formula

Overview

Sika Stixall has earned its place in the van of virtually every trade because it genuinely does what it claims — bonds anything to anything. Its hybrid polymer formula works on wet surfaces, cures flexibly, and provides enough grab strength to replace mechanical fixings in many applications. Where traditional adhesives fail on damp substrates, Stixall performs.

In-Depth Look

Sika Stixall is the adhesive that solved the wet substrate problem. On UK building sites, waiting for surfaces to dry before bonding is often impractical, and Stixall’s ability to grip on damp and even underwater surfaces has made it a genuine go-to product across multiple trades.

Hybrid Polymer Technology

Unlike silicone sealants (which do not accept paint) or polyurethane adhesives (which foam, expand, and can push lightweight panels off position), Stixall uses a hybrid polymer that combines the best properties of both. It bonds with high initial grab, remains permanently flexible after cure, accepts paint and finishes, and does not foam or shrink. This combination of properties is difficult to achieve with any single-chemistry alternative.

Universal Bonding

Stixall bonds to wood, metal, concrete, brick, stone, glass, ceramic, most plastics, and even polystyrene — without dissolving the surface. In practice this means one product in the van replaces a grab adhesive, a flexible sealant, and a construction adhesive. The ability to bond wet and submerged surfaces is particularly valuable for bathroom and external applications where waiting for a substrate to dry is impractical.

Open Time and Application

From a 290ml cartridge, open time after gun application is approximately 10-15 minutes before the skin forms, giving enough working time to adjust panel positions. Full cure proceeds at 3mm depth per 24 hours — a slower full cure than polyurethane, but adequate for most applications. The cartridge requires a standard mastic gun; a ratchet-release gun prevents drip when the trigger is released.

Temperature Range

Cured Stixall remains flexible and bonded from -40°C to +100°C, which covers virtually all UK construction applications including external cladding, roofline fixings, and high-temperature areas near flue pipes.

Verdict

Sika Stixall is the adhesive and sealant that belongs in every toolbox. Its ability to bond virtually any material in any condition, combined with permanent flexibility and paintability, makes it the most versatile single product in the fixings and adhesives category.

Specifications
Volume	290ml cartridge
Type	Hybrid polymer
Grab Strength	High initial grab
Cure Time	3mm per 24 hours
Temperature Range	-40°C to +100°C (cured)
Application Temp	+5°C to +40°C

Who It's For

Builders and general contractors needing a universal adhesive
Plumbers and bathroom fitters bonding in wet conditions
Kitchen fitters and joiners securing worktops, trims and panels

Pros & Cons

Pros

Works on wet surfaces — no need to wait for substrates to dry
Permanently flexible — handles thermal movement without cracking
Replaces multiple products — adhesive and sealant in one
Solvent-free and low odour for indoor use

Cons

Higher cost per cartridge than standard grab adhesives
Requires a standard caulking gun (not included)
Slow full cure — 3mm depth per 24 hours

Check Price on Amazon

Affiliate Disclosure: This page may contain affiliate links. If you purchase a product through one of these links, we may receive a small commission at no additional cost to you. This helps support our research and keeps this site running. Full disclosure.

Buying Guides

How to Choose the Right Fixings and Adhesives