Polyurethane Waterproof Coating 1kg Water-Based Anti Leak Roof Wall Crack Repair / Cat Kalis Air Bumbung Dinding 防水涂料

Polyurethane (PU) waterproof coating is a liquid polymer waterproofing material made from polyether polyols and polyisocyanates through polymerization. It is available in two main types: one-component and two-component. One-component products cure by absorbing moisture from the air and are ready to use upon opening; two-component products are formed by mixing Part A and Part B in a specified ratio before application. After curing, it forms a seamless, tough, and elastic waterproof membrane, making it one of the leading products in the building waterproofing sector.Seamless waterproofing – forms a continuous, dense waterproof layer with no joints, pinholes, or bubblesHigh elasticity – elongation at break up to 500% or more, accommodating substrate shrinkage, cracking, and thermal expansion/contractionHigh strength – high tensile strength (≥2.0–12.0 MPa) and excellent tear resistanceStrong adhesion – bonds firmly to various substrates including concrete, wood, metal, ceramics, and glassChemical resistance – resists acids, alkalis, oils, mould, and long-term water immersionWeather resistance & durability – resists UV radiation, ozone, and ageing with long service lifeExcellent low-temperature performance – no cracking at -35°C bend test, adaptable to various climatesEco-friendly & safe – free from toxic solvents such as benzene, toluene, and xylene; no coal tar componentsOne-component PU waterproof coating: After application, the prepolymer in the coating reacts chemically with moisture in the air, gradually curing to form a flexible rubber-like waterproof membrane. The curing process progresses from the surface inward, ultimately forming a seamless elastic waterproof layer.Two-component PU waterproof coating: Part A (prepolymer) and Part B (crosslinking agents, accelerators, etc.) are mixed in a specified ratio and undergo crosslinking curing. The resulting film offers higher strength and greater durability.One coating, ten years of peace of mind.