The Everflex Lead Mate Sealant is specially formulated as an alternative to mortaring lead flashing and sheet into brick, stone and concrete, providing a fully waterproof joint that will not crack or shrink. It has excellent adhesion to metals and low dirt pick up. Lead Mate is suitable as an expansion joint sealant With exceptional weathering properties, this sealant offers a high resistance to plasticiser migration so that can be used over water and solvent based paints. It has been certified to the European standard EN15651 for faade use internally in compliance with the Construction Product Regulation.