Dicor Corporation Part #CS200B1 Seal-Tite Corner Seal 2 A heavy-duty material for sealing RV walls and ceilings. Applied before the molding, Corner Seal provides a durable, flexible virtually impermeable seal between the unfinished union of the walls and ceilings. The sealing side consists of a thick, pressure-sensitive elastomeric seal that sticks and conforms to any smooth or irregular surface, including S-locks. Provides an instant and permanent seal underneath the caulk-and-molding system to provide a double barrier of leak protection. The fleece side provides more superior caulk-cure adhesion than the typical smooth surface of RV exteriors. Kit contains everything you need for 100 linear feet – 2 rolls of corner seal, 6 tubes of joint filling sealant as conventional putty and lap sealant, a putty knife to remove excess sealant, a spray bottle for clean up and instructions. Package Quantity = 1