Polyurethane paint is a common type of coating at present, which can be divided into two-component polyurethane coating and one-component polyurethane coating. Two-component polyurethane coatings are generally composed of isocyanate and hydroxyl-containing resin, usually called curing agent and main agent component.

Polyurethane paint film is tough, full of gloss, strong adhesion, water and abrasion resistance, and corrosion resistance. It is widely used in wood furniture and can also be used on metal surfaces. Its shortcomings mainly include problems such as damp blistering and chalking of the paint film. Like polyurethane paint, it also has the problem of yellowing.

There are many varieties of this type of coatings, and the application range is also very wide. According to the different hydroxyl-containing components, it can be divided into acrylic polyurethane, alkyd polyurethane, polyester polyurethane, polyether polyurethane, epoxy polyurethane and other varieties.

generally have good mechanical properties, higher solid content, and better performance in all aspects. It is a kind of paint variety with great development prospects. The main application areas are wood coatings, automotive repair coatings, anti-corrosion coatings, floor coatings, electronic coatings, special coatings, etc. The disadvantage is that the construction process is complicated, the construction environment is very demanding, and the paint film is prone to defects. One-component polyurethane coatings mainly include ammonia oil coatings, moisture curing polyurethane coatings, closed polyurethane coatings and other varieties. The application range is not as wide as the two-component coatings. It is mainly used for floor coatings, anti-corrosion coatings, pre-coiled material coatings, etc., and its overall performance is not as comprehensive as two-component coatings.