10 Best White Silicone Sealant Mould Resistant for 2025

Unibond

• Anti mould sealant – Once dry, the UniBond sealant forms a permanently flexible, mould resistant & waterproof sealant, ensuring strong seals and preventing mould growth.
• Specially formulated – The formula of this shower sealant is ideal for warm and humid environments such as bathrooms, kitchens and other tiled areas or surfaces.
• High adhesion – Create a perfect and long-lasting seal with this durable, high-strength kitchen sealant. Ensure a mould free finish with regular cleaning of the sealant.
• Easy-to-use – Complete your jobs quickly: after applying with a gun, the white kitchen silicone seal is 'touch dry' within just 20 minutes and fully dry within 24 hours.
• Practical Delivery – UniBond Anti-Mould White, sanitary sealant for kitchens & bathrooms preventing mould growth, silicone acetoxy formula, white, 1 x 274g Cartridge

SIKA

• Quick Curing Time: Rapid easy to use, silicone sealant that is touch dry in 15 minutes
• Anti-Mould Protection: Using a distinct Mould Shield anti-bacterial solution Forever White provides a 10 year protection against mould, mildew and bacterial growth to the sealant
• Extra Bacterial Protection: The inclusion of Anti-Bacterial Additive provides an added benefit which destroys against new germs on the sealant
• Sanitary Safe: Certified for use in areas where maximum hygiene is required
• Waterproof: Suitable for use in areas of high humidity and condensation including bathrooms, wetrooms and kitchens
• Available in white, clear, grey and ivory

DiscountSeller

• A quality waterproof and mould resistant silicone sealant
• Low viscosity for fast application. Perfect for small jobs around the home.
• Comes with Applicator Nozzle
• Quick and easy to apply. Ideal for use in kitchen, toilet, bathroom
• Colour- clear. Available in 70g tube/bottle.

Unibond

• Fast drying – The water-resistant sealant allows you to have your bathroom back in use quickly, allowing water contact within just one hour – our fastest sealant yet.
• Specially formulated – The anti mould sealant is ideal for warm, humid environments such as bathrooms and kitchens and is also suitable as a (power) shower sealant and sink sealant.
• Hygienic barrier – The UniBond sealant provides long-lasting, hygienic, waterproof and mould resistant seals for sanitary applications by creating a flexible barrier.
• Easy-to-use – Complete jobs quickly: after applying with the gun, the kitchen silicone can be exposed to indirect water contact after 1h and is fully dry after 24 hours.
• Package Contents– UniBond Speed Seal Sealant, sanitary sealant for humid environments such as bathrooms & kitchens, allows showers within 1h, long-lasting & mould resistant, 1x291g Cartridge

Everbuild

Dow Corning

• Protects against Bacterial Growth MRSA, E. Coli and Salmonella
• Ideal for sealing Sanitary ware and non-porous surfaces
• Excellent adhesion porcelain, glass, cermamics

Dow Corning

• Water-Resistant
• Improved Mould Protection
• 150degsC Heat Resistant
• White

Sika

• Excellent hygiene sealant: Specifically designed to seal and protect areas where maximum hygiene protection is required
• Sanitary safe: Suitable for use in kitchens and bathrooms
• Strong protection: Strategically incorporating a powerful fungicide into the formula, it provides a strong long-lasting protection against mould growth on the sealant
• Water resistant: Waterproof and flexible properties provide better seal suitable for sealing baths, showers and basins
• Quick curing time: A skin will form within 10 minutes after application
• Available in Manhattan grey, translucent, ivory, sandstone and white

Bond-It

• Powerful anti-fungal biocide - prevents mould growth
• Guaranteed to prevent black mould for 10 years
• Resistance to chemicals protects against discolouration
• Permenantly flexible - no cracking
• Use with enamel, tiles, glass, stainless steel, acrylics and more

Unibond

• Triple Protection – The durable white sealant offers a Triple Protect formulation to keep bathrooms & kitchens sanitary – repelling, killing and preventing mould growth.
• Long-Lasting – The kitchen and bathroom silicone sealant is not only designed to be waterproof but is also flexible and durable – ideal for challenging conditions.
• Multi-Purpose – The UniBond sealant can be used as a (power) shower sealant, for bathrooms, baths, toilets, worktops, sinks, basins or other tiled areas in general*.
• Coverage – The practical sealant cartridge lasts for 1x bath, 2x showers & 2x sinks. Once applied it is touch dry in 20 minutes and fully dry in 24 hours.
• Package Contents – UniBond Triple Protection Stop Mould Sealant, waterproof sealant for kitchens, bathrooms, sinks & basins etc.*, repels, kills & prevents mould growth, long-lasting, white, 1x291g Cartridge