SPECIFICATION 27

plit Wall Seals consist of two bolted pipe halves with minimum 3/4” (19mm) thick neoprene sponge bonded to the inner faces. The seal shall be tightened around the pipe to eliminate clearance between the inner sponge face and the piping. Concrete may be packed around the seal to make it integral with the floor, wall or ceiling if the seal is not already in place around the pipe prior to the construction of the building member. Seals shall project a mini- mum of 1” (25mm) past either face of the wall. Where temperatures exceed 240°F(115°C), 10# (4.5kg) density fiberglass may be used in lieu of the sponge. Seals shall be type SWS as manufactured by Mason Industries, Inc.