Achieve a long-lasting, waterproof and professional finish with Demsun D20 Super Sanitary Silicone Sealant. Designed for kitchens, bathrooms and other wet areas, this premium acetoxy silicone provides excellent adhesion to a wide range of non-porous surfaces while offering outstanding resistance to mould and mildew.
Ideal for both professional tradespeople and DIY users, Demsun D20 cures quickly to create a durable, flexible seal that remains bright, clean and resistant to everyday moisture.
✔ Premium 100% Silicone Formula
✔ Fast Curing
✔ Anti-Mould & Mildew Resistant
✔ Waterproof Long-Lasting Seal
✔ Non-Shrink Formula
✔ Excellent Adhesion
✔ Flexible After Curing
✔ Suitable for Interior & Exterior Use
✔ Professional Trade Quality
Bathrooms
Kitchens
Shower Cabins
Baths
Wash Basins
Kitchen Sinks
Splashbacks
Ceramic Tiles
Glass
Windows
uPVC Frames
Sanitary Ware
Ceramic
Porcelain
Glass
Aluminium
Stainless Steel
uPVC
Most Non-Porous Building Materials
Perfect for sealing:
Shower enclosures
Bath edges
Kitchen worktops
Kitchen sinks
Bathroom fixtures
Tile joints
Glass installations
Window frames
General waterproof sealing
Unlike standard silicone sealants, Demsun D20 is specially formulated to deliver a smooth, professional finish with excellent flexibility and long-term durability. Its premium acetoxy silicone formula provides strong adhesion while helping prevent mould growth in high-moisture environments.
Whether you're carrying out a full bathroom installation or replacing old sealant, Demsun D20 offers reliable performance you can trust.
Choose the quantity that best suits your project:
• 3 Pack
• 6 Pack
• 12 Pack
• 24 Pack
(Select your preferred pack size from the drop-down menu.)
✔ Demsun D20 Super Sanitary Silicone Sealant
✔ Quantity selected (3 / 6 / 12 / 24 Pack)
✔ Fast UK Dispatch
✔ Professional Trade Quality
✔ Trusted Demsun Brand
✔ Excellent Customer Support