... pollution, harmlessness, used in the waterproof of drinking-water pool.2.can be constructed on the wet base surface,especially adapting ... pool, dam, sewage treatment plant,Classification1. according to shape: ring tape, F, T,U,L E tape2. according to materil: EPDM , neoprene, natural rubber ... rainy days or avoid constructing on base surface with water.2. Do not do second coating until the first coating ...