Self adhesive EPDM butyle rubber waterproof roofing material

Company Profile

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

The main body of the product is EPDM membrane, with the self-adhesive layer composited by butyl rubber being main raw material. The membrane reacts chemically with the cast-in-situ concrete or cement paste and makes the membrane closely integrates with the concrete as a whole to form a permanent waterproof layer, effectively solving the problem of water channeling.

Specification & Technical Data

Width is 1-4 m, length of 20 m (length can be made according to customer requirements)

Product Characteristics

Skin-like Waterproof ：The membrane reacts chemically with the cast-in-situ concrete, which integrates closely to form a permanent waterproof layer, thus bringing the "water channeling" is under control despite local membrane perforates or damages.

Strong Cohesive Force：The strength of the membrane-concrete bonding reaches up to 0.9MPa or above, equivalent to the head pressure of 98 m and far beyond the pressure of groundwater.

Excellent Fitting Ability to Concrete Cracks：Once there are cracks on the concrete, the membrane extends along with the cracks, thereby the outer waterproof will not be destroyed.

Superior Elongation :The tear resistance is up to 35N at room temperature.

High Tensile Strength :The breaking elongation is above 8Mpa.

Good Durability：In accordance with detection, testing and theoretical calculations, the service life of the roof reaches up to 80 years, and even over 100 years in underground engineering.

Applicable Range

Suitable for building roof, wall, terrace, bridge, tunnel, dam, reservoir and other construction projects and underground engineering waterproof, moisture-proof.

Company Activities