... 2.Surface material: PE film, sand,mineral,Alu PE filmSBS/APP waterproof membraneUsage range:Bridge building, storage, road, tunnel, parking ... membrane is specially used as waterproof material in cold areac) APP is specially suitable for areas of high temperature and of ... strong sun-shine APP Technical data (Confirming to GB18243-2008) ItemIII PYGPYG Soluble ...