Two-Component Polyurethane Waterproof Coating

• Certification: ISO
• Material: Polyurethane, Cementitious
• Type: Roofing and Waterproofing
• Ceiling Tile Shape: Liquid
• Function: Waterproof
• After-sales Service: Online Technical Support, Onsite Training
• Warranty: More Than 5 Years
• Usage: Widely Used in Roofs, Basements etc.
• Transport Package: Carton Box
• Trademark: OTAi, OEM
• Origin: Tianjin, China

Product Description

Tianjin Binhai Otai Waterproof Material Co., Ltd. is a company specializing in the production of high-quality polymer waterproof materials such as TPO, PVC, HDPE, and waterproof coatings. It has more than 20 years of engineering experience. In 2014, OTAi and Acme Cone of the United States established a joint venture company Ocme, which focuses on the design and manufacture of various prefabricated waterproof accessories, such as inner and outer corners, pipe wraps, drains and ventilation systems, underground pile heads, etc. These prefabricated waterproof accessories are widely used in the installation of polymer waterproof membranes as a good support system.

Otai cooperated with well-known domestic universities to develop products, introduce talents and technologies. Adopting standardized 6S factory management and establish standardized laboratories. Focus Is the Gateway to Business Success.

As the vice chairman unit of China Building Waterproofing Association, Otai has always been committed to exploring and researching problems in waterproofing systems, and using our professional solutions to provide customers with the best service.

Advanced Production Equipment

Research & Development

OTAi Technical quality assurance department control the quality from raw materials to finished products, as well as the development of product formulations.

 

Product Description

OTAi SR Polymer-modified Cementitious Waterproof coating  are double components polymer cement waterproof coatings.

The two-component polyurethane waterproof coating is a film formed by reaction and solidification of two components A and B.

Component A is a transparent to light yellow viscous liquid containing isocyanate end group generated by polymerization of polyether, polyisocyanate and other raw materials;
Component B is a paste formed by mixing and processing of cross-linking agent, accelerator, toughener, tackifier, mould inhibitor, filler and pigment. When in use, A and B components are mixed in a certain proportion, stirred evenly, scraped and coated on the base surface, and after several hours of reaction curing, a waterproof coating with elasticity, toughness and durability is formed.

A part: Macromolecular emulsion 18kg

B part: inorganic substances 15kg

Characteristics

- 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.

 

Executive Standard

GB/T 19250-2013 (Polyurethane Waterproof Coating)

Application Method

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.

Packaging & Shipping

Port:	Tianjin Xingang Port
Shipping:	Support Sea freight