1 Product Overview: I developed the production of two-component reaction curing type polyurethane waterproof coating synthetic polymer is a high performance eco-friendly waterproof coating. Wherein, A component is of a polyether group-NCO prepolymer, B component is a surface active agent, filler, curing agent, catalyst containing-OH groups of viscous fluid. When used, the A, B two points by a certain percentage by weight of mixed solid form after a few hours after both flexible, tough but also the overall durability of the coating waterproof layer. This product is suitable for railway bridge deck waterproofing to prevent water leakage caused by the concrete deck reinforcement corrosion, improve the service life of the bridge, the performance indicators by the railway construction inspection station test, the test items meet the technical requirements of the national standard. (2) Implementation of the standards: TB / T 2965-2011 "railway concrete bridge deck waterproofing layer technology" 3 Features: 1 Material properties: film after elongation, elastic, cold, heat (-40 to 150 ℃), good corrosion resistance, air tightness, water tightness high, excellent waterproof performance. 2 waterproof effect: liquid waterproof construction required for various shapes of the base surface can form a continuous waterproof layer. 3 easy to use: A, B two liquid at a certain weight evenly mixed, graded brushing the need to waterproof the grassroots level. 4 strong adhesion: strong bonding with the concrete surface has strong adhesion and adhesion. 5 Maintenance is easy: just some patches for leaks, you can still achieve the original waterproof effect, time-saving, low cost. 4 Scope: This product is mainly used for high-speed railway, highway bridge waterproofing. Can also be used in the following areas: six ground works: Bathroom, kitchen, exterior walls, roofs, swimming pools and so on. 7 underground engineering: concrete walls, floor, tunnel, caisson and so on. 8 adhesive seal: cement board, expansion joints, construction joints, settlement, fell into the water and so on. 5 Construction: 9 Primary Surface: grass surface dirt, dust, aging parts and grout, oil must be cleaned, low-lying breakage fill level, primary surface should be smooth, dry, clean, moisture content ≤ 9%; 10 Ingredients: first B material Stir, then A material, B material weight ratio of 1:3, stir to construction. Please click brushing area ingredients, avoid excessive waste. Especially when the ambient temperature is very high but also to pay attention to the construction of the applicable time; 11 Brushing: Brushing generally use 2-4 times (you can add appropriate amount of diluent, easy brushing). First time with a brush or paint roller, thin coating again. 2-4 times, directly mixed with a plastic or rubber paint scraper evenly, each time the amount of ≤ 0.8Kg / m, the total thickness of the coating according to claim brushing, generally 2.0 ± 0.1mm thick. Needed to be applied every time after the last dry before the next operation, after the end of the Nature Conservancy two days before the Master walk. 6 Note: 12 A, B components were mixed, it should be used within 40 minutes; 13 A, B component is strictly prohibited contact with water, A component must be sealed after use; 14 rain and snow, four or more Strong winds prohibited construction; 15 paint solvent free, non-dangerous goods, safe transport; 16 transport and storage, the different types and specifications of products should be stacked separately and should not be mixed. Avoid the sun and rain, a ban on approaching fire, to prevent collisions, attention to ventilation, storage temperature is room temperature storage. 7 performance index (3.5 and 6.0MPa): Implementation of the standards: TB / T 2965-2011 "railway concrete bridge deck waterproofing layer technology" No Item Index waterproof layer adhesive 1 Tensile strength (MPa) ≥ 6.0 ≥ 3.5 2 Pull tensile strength retention rate (%) heat treatment alkali treatment ≥ 70 ≥ 100 ≥ 80 3 acid treatment Elongation (%) No treatment heat treatment ≥ 450 ≥ 450 ≥ 450 acid-alkali treatment process ≥ 450 4 Flexibility at low temperature without treatment ≤ -35 ??℃, no cracks heat treatment alkali treatment acid treatment five dry time (h) ≤ 4 6 Drying time (h) ≤ 24 7 impermeability (0.4MPa, 2h) impervious 8 heating expansion rate (%) ≥ -4.0, ≤ 1.0 9 Alkali resistance, saturated Ca (OH) 2 solution, 500h no cracking, no peeling peeling 10 Solid content (%) ≥ 98 11 Wet base surface bond strength (MPa) ≥ 0.6 12 stick and concrete knot strength (MPa) ≥ 2.5 13 Tear Strength (N / mm) ≥ 35.0 ≥ 25.0 14 peel strength of concrete (N / mm) ≥ 3.5 ≥ 2.5 16 peel strength and the waterproofing membrane (N / mm) - ≥ 0.5