The Good & Proper Building Silicone White C20 is a versatile, acetoxy-cure silicone sealant engineered to provide a flexible, waterproof seal for general sanitary and construction applications. Designed for professional tradespeople, bathroom installers, and maintenance contractors, it offers a reliable solution for sealing around baths, basins, showers, and non-porous building joints.
 
Formulated with integrated anti-fungal properties, this high-gloss white sealant actively prevents mold and bacterial growth in high-humidity environments like kitchens and bathrooms. It cures quickly upon exposure to atmospheric moisture to form a permanently elastic, rubbery seal that accommodates standard joint movement and resists cracking, shrinking, or discoloration over time.
 
Supplied in a compact C20 cartridge format compatible with standard caulking guns, it delivers smooth, effortless extrusion and adheres tenaciously to smooth, non-porous surfaces such as glass, ceramic tiles, porcelain, and painted metals. It serves as an essential, everyday trade consumable for achieving clean, hygienic, and watertight seals across residential and commercial interiors.
 
Features & Benefits:
Universal crystal clear adhesive for interior use.
Free of isocyanates, solvents and silicones.
No shrinkage, bubble free.
Adheres perfectly without primer to most surfaces.
Neutral curing, almost odourless.
Non corrosive towards metals.
High mechanical resistance strength and E-modulus.
Absorbs acoustic and mechanical vibrations.
Colour: White (Also available in Clear)