WDT-PU Polyurethane Waterproofing coating (single component/double components) contains single-component polyurethane waterproof paint and two-component polyurethane waterproof paint.
The single-component polyurethane waterproof paint is a kind of reactive-type wet-cured and film-formed polymer waterproof paint, which is made of the main raw materials of isocyanate and polyether polyol together with various additives and fillers through addition polymerization. In the use, coat the single-component polyurethane waterproof paint on the waterproof base course and it makes chemical reaction with the moisture in the air through the –NCO end group in polyurethane pre-polymer to form a tough, soft and seamless rubber waterproof membrane on the surface of base course.
The two-component polyurethane waterproof paint belongs to two-component chemically-cured waterproof material, and in this paint, the component A is pre-polymer of isocyanate end capping obtained from poly-condensation of polyether and isocyanate; the component B is the color liquid consisting of curing agent, accelerator, plasticizer and thickener. In the use, mix the component A and component B evenly, then coat the mixture on the surface of waterproof base course, and crosslinking and curing at room temperature, a rubber-like elastic coating will be formed to play a waterproof role.
The single-component polyurethane waterproof paint can be used once opened, and it is convenient for construction; the two-component polyurethane can be used for construction as long as two components are fully mixed according to the proportion of 1:2, and it is simple to operate.
With strong bond strength, the product has very good bond strength with the base course, and the base course treating agent is not needed; after forming the film, the product can be soaked in water for a long time.
The paint film has good water resistance, corrosion resistance and bacteria resistance.
The paint film is compact without pinhole and bubble.
The polyurethane paint film has high tensile strength, good elongation, and excellent resistance to high and low temperature.
Safe, environment-friendly, and free of harmful ingredients such as coal tar.
The color is tunable, and it can meet different customers' individual requirements for surface color.
Waterproofing engineering of non-exposed roof, underground engineering, toilet, bathroom, kitchen, balcony, water pool, and parking lot; and waterproofing construction of places with complicated structure and crisscrossed pipes.