作者: Vittorio Ciaccia
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摘要: Waterproofing sheets or membranes comprising a support constituted by vulcanized polyolefinic rubber enclosed in structure of sandwich type between two layers bituminous composition selected from: (1) compositions comprising, weight (A) 60-90% bitumen (B) 3.5-20% EPM EPDM (C) 3-20% HD polyethylene (D) 1.5-10% EVA copolymer (E) 0-10% isotactic polypropylene (F) 0-20% inorganic filler (2) 40-10% styrene-butadiene elastomeric amorphous filler.