Waterborne polyester is the product of coating technology science

In the polymer synthesis industry, polyester is an important resin for synthetic fibers. The polyester used in the coatings industry generally refers to a linear or branched, low molecular weight amorphous oligomer synthesized from a polyol and a polyacid through a polyesterification reaction.

According to the saturation of its structure, it can be divided into saturated polyester and unsaturated polyester.  There is also an important resin in the coating industry called alkyd resin, which is also called oil-modified polyester, or alkyd resin. Polyester in the coating industry can also be referred to as oil-free polyester resin (PE).

Polyester used in coatings generally does not form a separate film, and is mainly used to prepare polyester-amino baking paint, polyester polyurethane paint, polyester powder coating and unsaturated polyester paint, all of which belong to medium and high-end coating systems. The resulting coating film High gloss, good fullness, strong weather resistance, and also has good adhesion, hardness, impact resistance, gloss retention, color retention, high temperature resistance to yellowing and other advantages. At the same time, due to the large number of synthetic monomers of polyester and the large choice of macromolecule formulation design theory, it can be modified by acrylic resin, epoxy resin, silicone resin and fluororesin. Therefore, the position of polyester resin in the coating industry Continuously improve, the output is getting bigger and bigger, the application is also expanding day by day.

Waterborne polyester is the product of coating technology science and the requirements of sustainable social development. The structure of water-based polyester resin is similar to that of solvent-based polyester resin.

 Water-based polyester can be mixed with water-based amino resin to form water-based baking paint, which is particularly suitable for coil coatings and automotive middle coatings, and can meet the requirements of stamping forming and stone-strike resistance. Because the coating has good hardness, fullness, brightness and stain resistance, it is also suitable for decorative topcoats for light industrial products.