| Customization: | Available |
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| After-sales Service: | Online Technical Support, Onsite Training |
| Certification: | ISO |
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OTAi Technical quality assurance department control the quality from raw materials to finished products, as well as the development of product formulations.
- It does not contain toxic and harmful substances such as coal tar.
- It is solidified at normal temperature, the waterproof layer is seamless, flat and smooth, and firmly bonded with the base.
- It is easy to construct in the position with complex shape, and the effect is better than that of coiled material.
- Liquid cooling construction, simple and convenient operation.
- It has long service life, weather resistance, aging resistance, oil and acid-base resistance, and wide application range, and can be used on the upstream and downstream water surfaces.
GB/T 19250-2013 (Polyurethane Waterproof Coating)
Spraying method, scraping method
- Base cleaning: the dust, sand, mortar, hard block and other sundries on the surface shall be cleaned. Roof water outlets, air vents, equipment and facilities, sanitary facilities, etc. shall be installed firmly, with tight and flat joints.
- Ingredients:Ingredient ratio: component A: component B = 1:2 The two-component polyurethane coating belongs to the reactive curing type and must be proportioned strictly. It is required to measure accurately, and the deviation of a and B components after mixing shall not be greater than 5%. After accurate weighing, pour it into the batching bucket, mix it with the electric mixer for 3-5 minutes, and use up the batching amount within 20-30 minutes each time.
- Construction of additional layer: the weak parts such as internal and external corners and through wall pipes shall be reinforced with additional layer. It can be made into "one cloth and two coatings", in which the carcass reinforcement material should preferably be polyester non-woven. During the construction, it is necessary to brush the coating once, then immediately lay the matrix reinforcement material, and then brush the coating on the surface.
- Large area painting: large area waterproof construction can only be carried out after the additional layer of node is dry. During the plane construction, the mixed coating shall be evenly poured on the base course, and then the coating and scraping construction shall be carried out. During facade construction, scratch from bottom to top. 1.5-2.0 thick waterproof coating is suitable for 3-4 times of scraping. The width of construction joint shall not be less than 100 mm. Each time of scraping shall be conducted in the direction perpendicular to each other.
- Protective layer construction:If tiles and other procedures need to be applied outside the waterproof layer, it is recommended to perform sanding treatment before the last coat is applied to avoid tile adhesion.
Notes:
1. When the coating is not fully cured, it is strictly prohibited to get on or carry out the next construction.
2. Construction is strictly prohibited in rainy days, and contact with rainwater is strictly prohibited before film curing.
3. The construction temperature should be 5-35 ºC.
4. There shall be no open water on the wet foundation surface of underground works, and construction shall be carried out 24 hours after drainage. 5. Reference dosage: 1.0mm thick coating, the total dosage of coating is about 1.4-1.6kg/m2.
6. It is not recommended to directly use polyurethane coatings and water-based coatings or coils to avoid reactions affecting the waterproof layer.
The product is widely used in hidden waterproof and anti-seepage works such as railway, tunnel, bridge, track, culvert, pool, roof, underground, toilet and bath room, and also in non-exposed roof works.
| Port: | Tianjin Xingang Port |
| Shipping: | Support Sea freight |
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