Unibond general purpose silicone is an acetoxy curing silicone sealant which forms a permanent flexible seal movement capacity 125 the sealant provides a weatherproof seal and has excellent adhesion to most construction materials including many plastics vitreous enamel glass metal aluminium brickwork glazed ceramic and porcelain tiles also suitable for draught proofing windows and doors and for sealing gutters and down pipes not suitable for polycarbonate sheet over painting or in aquaria for