There is no brand that is more famous. I suggest you to compare different stores in the local building materials market. The price of this film in normally twenty yuan a square. At present, the plastic films that are used for preventing water seepage are polyvinyl chloride, polyethylene (PE) and EVA (ethylene/ vinyl acetate copolymer). ECB (ethylene vinyl acetate modified asphalt blending geomembrane)is used in tunnels. It is a kind of high polymer chemical flexible material and it has smaller proportion, good extensibility, high?adaptability?to the?deformation, corrosion resistance, low temperature resistance and frost resistance.
