waterproof, mildewproof, corrosion resistance and anti-frost cracking. 1.Excellent waterproof performance, anti-permeable ≥ 20KPa.2.Almost nonabsorbable of water, drying quickly after the rain without adding weight, convenient in usage3.Heat combined with high-frequency, which guaranteed this fabric water tight and will not crack.4.High strength of tensile. Water proof tarpaulin