... , and covers the insulation materials as, sands, gravels pieces, which also has good quality and function in coterie. 2 Scope ... pool, sewage purifying pool and others. C Especially adapting to the waterproof of structure changeable and cold area. 3 Advantages ... anti-aging, anti-alkali, resistant to low temperature. High tensile strength and enlongation, which adapts to the contraction or crack of the ...