Everbuild Forever Sealant is a superior silicone sealant that is permanently waterproof and flexible. Ideal for sealing shower bases and cubicles, wet rooms, around baths, sinks and basins. It is also ideal for use in kitchens and utility rooms, and for sealing around window and door frames. With Mould Shield, an anti-bacterial solution integrated into the manufacturing process, Forever Sealant is guaranteed to stop black mould growth for 10 years.