Sika Forever White, Forever Clear, Forever Grey & Forever Ivory are high-performance silicone sealants that remain permanently waterproof and flexible, ensuring exceptional durability in high-humidity environments. Formulated with Mould Shield® technology and rigorously tested in accredited microbiological laboratories, Sika® Forever sealants provide long-lasting resistance to mould, mildew, and bacterial growth. These sealants have been proven to resist mould growth even after 10 years of simulated ageing.