Metal Sealant SHC 105-03 is a butyl-based elastomeric sealant used mainly for sealing stainless steel (SUS) and aluminium jacketing in thermal insulation systems. It provides a flexible, weather-resistant, and durable seal around seams, joints, and fasteners, helping to prevent moisture ingress, corrosion, and air leakage. It is suitable for industrial, marine, and insulation applications and can also adhere to surfaces such as galvanized steel, concrete, glass, and aluminium.