Polyflex-452 is a polyurethane sealant, perfect for bonding and adhering substrates such as aluminium to aluminium, aluminium to steel, and chromadek strips to polystyrene. It has high movement capability, allowing for expansion and contraction compensation when used on different substrates. Ideal for metal and mechanical construction and body work around automotive, caravan, and mobile home units. It has good resistance to water, oil, grease and is weather resistant. Polyflex 452 is also paintable.