Project Film: PTFE as a raw material, made by a special process two-way stretch. Corrosion resistant, chemical-resistant, non-aging, high strength, anti-infiltration, anti-oil repellent and water features; widely used in the construction of roads, bridges, reservoirs, dams, slope, tunnels, railways, etc. Widely used in curing cast concrete. General conservation moisturizing period, no longer watering. During long-lasting moisture conservation, the concrete surface can always be kept moist; inhibit microfracture good insulation, double moisturizing properties, can effectively inhibit the production of micro-cracks.