10 Best Silicone Sealant 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

Evo-Stik

• Flexible to accommodate movement
• Weather resistant and waterproof
• Contains fungicide for mould resistance
• Guaranteed up to 25-years
• Interior or exterior use

SIKA

• Permanently flexible
• Anti-fungal formula - prevents mould growth
• Quick curing - low dirt pick up
• Low viscosity for fast application
• Certified under the harmonized European standard EN15651 for façade, cold climate and sanitary applications in compliance with the Construction Product Regulation

151

• 151 Clear Silicone Sealant 70g Silicone sealant from 151 in handy 70g tube perfect for those small jobs:
• Easy to apply - Ideal for small jobs - Waterproof
• Ideal for kitchens and bathrooms - Includes applicator nozzle Available in both clear OR white

Sika

• Formulated as a high viscosity grade to give Ideal tooling properties
• Cures quickly to provide a permanently flexible, high strength waterproof seal
• Ideal for perimeter pointing internally and externally around PVCu/wood and all other window frames, sealing and as an adhesive onto PVCu, plastic trims and components
• Suitable expansion joint sealant or weather sealing and ideal for pre-formed panels, general glazing sealing, including repair work over existing sealant, glass to glass and glass to aluminium sealing
• Available in Brown, Black, Translucent, White, Buff, Oak and Grey
• Silicone 450 Builders Silicone
• Size: 300 ml
• Brand: Everbuild

Unibond

• Your sealants like new – This innovative joint filler refreshes old bathroom or kitchen silicone. Simply apply on top of existing sealant – no need to remove old sealant.
• Clean finish – This shower sealant features an innovative, self-tooling applicator, ensuring easy application & a professional finish; No additional smoothing tool needed.
• Anti mould sealant – UniBond sealant RE-NEW offers triple protection mould resistance – preventing, killing and repelling mould over the long term.
• Smooth application – This bath, sink and kitchen sealant can be applied very easily and will renew moulding, yellowing or cracking of a seal. Use showers after 6 hours.
• Practical Delivery – UniBond RE-NEW, sealant tool for one-step sealant renewal, silicotec technology with Triple Protection System, integrated smoothing tool, white, 1 x 100ml Tube

Unibond

• Easy to use – The UniBond sealant is quick and simple to use. There is no gun required and no mess, with a precision nozzle for smoother applications and speed control.
• 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 sanitary sealing tasks in warm and humid environments, e.g. baths, sinks, basins & kitchens.
• 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.
• Practical Delivery - UniBond Go Seal, anti-mould white kitchen silicone sealant, ready to use applicator with precision nozzle, silicone acetoxy technology, 1 x 100ml Pressure Pack

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

SIKA

• Permanently flexible
• Anti-fungal formula - prevents mould growth
• Quick curing - low dirt pick up
• Low viscosity for fast application
• Certified under the harmonized European standard EN15651 for façade, cold climate and sanitary applications in compliance with the Construction Product Regulation

Unibond

• Waterproof and mould-resistant silicone sealant by UniBond / Especially long-lasting sanitary sealant with high adhesion
• Application areas include the bathroom, kitchen, and other tiled areas, worktops and sanitary ware / Effectively prevents mould growth
• Silicone sealer comes in a tube, perfectly suited for small jobs
• Tips & tricks: Ensure the area to be sealed is clean, dry and free of old sealant / Smooth sealant with a sealant finishing tool within 5 minutes / Allow 24 hours to fully dry
• Items delivered: 1 x white UniBond Anti-Mould Sealant in tube 150 ml / Store protected from direct sunlight and frost