Everbuild Everflex Lead Mate Sealant is a low modulus, neutral cure sealant specifically designed to give exceptional adhesion to soft metals such as lead, brass etc. Specially formulated as an alternative to mortaring lead flashing and sheet into brick, stone and concrete. With excellent adhesion to metals, it will not stain or corrode soft metals unlike most conventional sealants. Designed for a low dirt pick up rate, and excellent flexibility & plusmn 50%. It also has excellent low and high (+150 C) temperature resistance and is solvent free with low shrinkage during vulcanisation. Resistant to plasticiser migration and may be used over water based and solvent based paints for a professional finish. It has excellent external weathering properties and will withstand all weather conditions, giving a longer professional look. AREAS FOR USE - As an alternative to mortaring in lead flashing and sheet into brick, stone and concrete. - Suitable as an expansion joint sealant. - Weather seal