Non-tar-based two-component polyurethane waterproof coating material, the use of water as chain extender, to avoid the problem of toxicity of amine-based chain extenders, seamless rubber elastic waterproof layer formed after curing. I. Features: 1. Normal construction, easy to operate, non-toxic and harmless. 2. Natural leveling, good extension, to overcome the primary cracking caused leakage. 3. Has excellent weather resistance, oil resistance, water, corrosion resistance. 4. May damp construction (no clear water), strong adhesion to shorten the construction period. Second, use: for the basement, bathroom, bathroom, storage tanks, grain storage, roof, exterior walls and other waterproof. Third, the technical indicators: Standard GB / T 19250-2003 Project Index Tensile strength / MPa 1.9 Elongation /% 450 Tear Strength / (N / mm) 12 Flexibility at low temperature / ℃ ≤-35 impermeability 0.3MPa 30min impervious solid content /% 92 dry time / h ≤8 drying time / h ≤24 four, construction requirements 1. Requirements base surface smooth, clean, free from Abies move. 2. Pour in proportion to the B A compound material, electric stirring 5 minutes, usually in two to three times brushing, brushing with a scraper, the force should be uniform and smooth. General as a protective layer of cement mortar with 2 cm thick, do facade When the protective layer can not paint when fully cured final sanding on the wall to enhance the five bond strength, packaging, transportation and storage: 1. This product is stored in a dry, ventilated, cool place, shelf life from the date of manufacture unopened six months. 2. Transport of dangerous goods by non-processing.