HongyuanTM one-component polyurethane waterproofing coating, a
moisture-cured coating, comprises NCO-terminated polyurethane
prepolymer (prepared through the addition polymerization between
isocyanate and polyether polyol,which are the two major raw
materials of this product), additives, fillers and pigments, etc.
After applying the coaint on a substrate, the NCO groups of
polyurethane prepolymer react with the moisture in air to form a
tough, flexible, seamless and rubber-like film featuring
waterproofing-properties.