Hyperseal®– Expert – 150 is a novel low modulus expansion joint sealant, especially formulated to ensure bubble free cure even at very high temperature and humidity climatic conditions. Recommended for sealing joints in; Insitu concrete, expansion concrete plates, precast panels, brick and block work, water tanks and swimming pools, metal frames, aluminium windows and panels, irrigation channels, glass, granite & marble. Colour: Concrete Grey as standard. (Black/Red Available)