“Lead Mate Sealant is the perfect and only product for sealing lead flashing into the chase in a wall. It forms a firm seal to prevent water penetration into the gap around the flashing and chase. Silicone seals do not form an effective seal. Will definitely recommend.”
“The material does the intended job and is easy to use. The chase must be filled, top to lead, to ensure no rain gets over the Leadgate and into the building.”