Tired in our factory according to construction practice for many years of experience, know to prevent roof leakage, reduce maintenance and promotion of new products, must have excellent function, low price, easy operation and good effect of the scientific research units, continuous efforts, innovative technology, gradually develop into a good weathering resistance, high tensile strength, elongation, using temperature range is wide, cold construction, no environmental pollution. F - 928 product quality habitat domestic leading position. He came out, make up for the short service life of the original waterproof coating, waterproof effect such shortcomings