UniBond Multi-Purpose Silicone Sealant - Grey

Name: UniBond Multi-Purpose Silicone Sealant - Grey
Brand: UniBond
SKU: vilybcvsmf
Price: 10.00 GBP
Availability: InStock

UNIBOND Indoor Multi-Purpose Grey Silicone Sealant is a high-performance, one-component, ready-to-...

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Product Information

Full details

The UniBond Multi-Purpose Grey Silicone Sealant is an ideal solution for DIY enthusiasts and homeowners looking to seal gaps in kitchens, bathrooms, and utility areas. It provides a durable, waterproof, and flexible finish that resists mould growth for up to 15 years, making it a reliable choice for long-term maintenance around tiles, ceramics, and worktops. While it offers excellent adhesion to various materials, users should note that as an acetoxy-cure silicone, it is not suitable for all natural stone surfaces or fish tanks, and requires proper ventilation during the curing process.

All features

Colour	Grey
Brand	UniBond

Extended Product Information

FAQs

Can I use this on my kitchen worktop?

Yes, it is excellent for sealing gaps between worktops and sinks or walls, providing it is not a sensitive natural stone.

Does it come with a guarantee?

Yes, this product is backed by a 15-year mould resistance guarantee.

How long does it take to dry?

It is surface-dry within a few hours, but it should be left to cure for 24-48 hours before being exposed to water.

Can I use this sealant for exterior jobs?

This product is specifically designed for indoor applications; for exterior projects, look for a dedicated weather-resistant sealant.

Is it safe for use around fish tanks?

No, this product contains fungicides and should not be used in aquariums or where it might come into contact with fish or food.

What tools do I need to apply this?

You will need a standard caulking gun, a utility knife to cut the nozzle, and optionally a smoothing tool for a professional finish.

Troubleshooting

Sealant is not sticking to the surface

Ensure the surface is completely free of soap residue, old silicone, or moisture. Use a degreaser and allow to dry thoroughly before application.

Sealant is stringy or messy during application

Check the temperature of the cartridge; if it is too cold, it may be thick. Ensure the nozzle is cut cleanly and the caulk gun pressure is consistent.

Uneven or rough bead finish

Smooth the bead immediately after application using a professional jointing tool dipped in a mild soapy water solution.

Pros and Cons

Pros

Excellent resistance to mould for up to 15 years
Flexible formula prevents cracking over time
Ready-to-use one-component system
Provides a clean, modern grey finish
Strong adhesion to non-porous surfaces like glass and ceramic

Cons

Not suitable for some natural stone surfaces
Strong vinegar-like odour during curing due to acetoxy chemistry
Not intended for use in aquariums
Requires a caulking gun for application

Setup, Compatibility & Care

Preparation: Surfaces must be clean, dry, and free of old sealant, dust, or grease. Use a solvent to wipe down non-porous surfaces.
Application: Cut the cartridge nozzle to the desired bead size at a 45-degree angle. Load the cartridge into a caulking gun and apply the sealant steadily along the joint.
Compatibility: Compatible with ceramics, glass, painted finishes, and aluminium. Avoid using on surfaces where it may react, such as marble or other sensitive natural stones.
Care: Allow the sealant to cure fully for 24-48 hours before exposing it to heavy water contact. Keep the area well-ventilated during the first few hours of curing.