BUTALU is a sealing tape which consists of a modified butyl rubber body and a complex aluminium support reinforced with synthetic material, and a silicon protective film. Due to the unique composition of the butyl rubber mass, a very high initial adhesion is obtained. The extreme flexible rubber mass adapts itself to each form and fils smoothly irregularities in the surface. The aluminium support is reinforced with synthetic material and is therefore tear resistant, unalterable and extremely weatherproof. The carrier is lead coloured and can be painted on. BUTALU allows sealing of leaks or finishing off of joints in a quick and very effective way.