Roof N Wall Seal has been discontinued by the Manufacture C-Tec. The New alternative is the C-Tec WT1 Waterproof Multi-Purpose Adhesive Sealant - Available Here. This one-coat paste Roof N Wall Seal from C-Tec is the ideal product to seal any roof or wall. A unique formula of polyester, modified bitumens, and butyl rubbers, Roof N Wall Seal provides the ultimate in repair and sealing, and is perfect for flat roof installations and repairs. With no heat necessary for application, and its immediate sealing properties, you are sure to finish sealing your walls and roofs much quicker, with the peace of mind that C-tec Roof n Wall sealant stays flexible for up to 20 years! Roof n Wall Seal is ideal for applications such as: -Repair of bituminous flat and sloping roofs -Sealing of chimneys, gutters, drainpipes, flashings, roof edges and compression seals. (Roof n Wall Seal has excellent adhesion onto lead) -Waterproofing of foundations (DPC) and walls, flat and sloping roofs,