Everbuild 450 Builders Silicone is a premium quality, low modulus, non-corrosive, neutral cure silicone sealant that adheres to a wide range of substrates, both porous and non-porous. It offers industry-standard performance and is trusted by builders worldwide. This sealant is ideal for construction expansion joints and perimeter pointing around all types of door and window frames. It conforms to ISO 11600 class: F 25LM. The product is a high viscosity grade for excellent tooling properties, cures quickly to a permanently flexible, high-strength waterproof seal with extremely low dirt pick-up. It is flexible and waterproof, providing a good sound seal for a professional finish. Suitable for sealing around PVCu, wood, and other window frames, sealing and adhering to PVCu and plastic trims, expansion joint sealing, weather sealing, joint sealing to pre-formed panels, sealing soft metals like lead, copper, and zinc, general glazing sealing, draught proofing, and repair work over existing sealant. This variant is in Buff colour and comes in a 300ml tube.