Sika Stixall Extreme Power Sealant and Adhesive (290ml)

In-Depth Look

Sika Stixall is a hybrid polymer sealant and adhesive. On site, waiting for surfaces to dry before bonding is not always practical, and suppliers say Stixall can be applied to damp or wet surfaces.

Hybrid Polymer

Suppliers describe hybrid polymers as combining features of silicone and polyurethane products. Stixall has a strong initial grab, stays flexible after it cures and can be painted once cured. It is solvent-free and cures chemically.

What It Bonds

Supplier lists say it bonds to metals, most plastics, glass, concrete, plaster, plasterboard, wood and painted surfaces. It is not suitable for structural glazing, aquariums, bitumen or asphalt. Use mechanical fixings where the job or the panel maker calls for them, and check the datasheet before using it on joints that will stay under water.

Application

The 290ml cartridge fits a standard sealant gun. Position panels or trims soon after applying, before a skin forms, and support heavy items while the adhesive cures. Cure time depends on bead depth, temperature and humidity, so check the datasheet.

Summary

Sika Stixall Extreme Power is a solvent-free hybrid polymer sealant and adhesive with a strong initial grab that can be applied to damp or wet surfaces and stays flexible once cured.

How It Compares

Sika Stixall Extreme Power is a one-part, solvent-free, chemically curing sealant and adhesive. It is a hybrid polymer, and suppliers describe it as combining features of silicone and polyurethane products. According to suppliers it can be applied to damp or wet surfaces, has a strong initial grab, stays flexible once cured and can be painted once cured. Towntools states it does not stain stone such as marble and granite. Supplier lists say it bonds to metals, most plastics, glass, concrete, plaster, plasterboard, wood and painted surfaces. Towntools states it is not suitable for structural glazing, aquariums or bitumen and asphalt.

For other products on this site, see the CT1 sealant adhesive, the Evo-Stik Gripfill adhesive and the Unibond anti-mould silicone sealant for sealing wet areas. Our guides on choosing sealants and adhesives and choosing fixings and adhesives give more detail.

Common Questions

What is a hybrid polymer adhesive? It is a one-part product that blends silicone and polyurethane traits, and the supplier describes it as solvent-free.

Can I use it on a damp surface? The supplier says it can be applied to damp surfaces. The surface should still be clean and free of loose material. Test first.

Can I paint over it? Yes once cured, according to the supplier. Check that your paint is compatible.

What should I not use it for? The supplier lists structural glazing, aquariums and bitumen or asphalt. Anything load bearing or safety critical needs a rated fixing or a competent person.

How do I get a tidy bead? Cut the nozzle, use a gun, tool the bead and clean up before it skins.

Does it replace screws or other fixings? No. It bonds to many materials, but it does not replace mechanical fixings on structural or safety work. Use a rated fixing where the load matters.

How does it differ from silicone? Silicone sealant is not paintable. This hybrid polymer can be painted once cured, and it also has a strong initial grab. For sealing wet areas, see the Unibond anti-mould silicone sealant linked above.

Read the cartridge for application limits such as temperature and cure time. Use ventilation and wear gloves, follow the manufacturer’s instructions, and use a competent person where required.