Cromar Lead Seal is a low modulus, neutral cure, fast curing roof sealant, specifically designed for use with metals such as lead, galvanised steel etc. Ideal for stopping weather ingression, tile lift and noise.

Lead Seal is the perfect product for sealing rooflights, conservatories, soffits, glass houses, industrial roofing systems, lead flashing, and as an alternative to mortaring lead flashing. Has excellent UV heat and ozone resistance, setting to a tough resilient rubber. Excellent adhesion to glass, slate, all metals, concrete and brick, GRP, sealed timber, plastics (including polycarbonate), acrylics, PVCu and all painted surfaces.

GRP Roofing application:

When sealing a flashing trim (C100/C150) into the wall. (Polyurethane adhesive should be used for all other general trim affixing. )

The flashing trim is inserted into a brickwork bed joint (may be necessary to chase out with an angle grinder). Apply a generous bead of lead mate to seal the chase, mortar may be required dependent upon span of chase.