Architectural coatings are composed of base materials (also known as film-forming substances, adhesives, etc.), pigments, fillers, solvents (or water) and various supporting additives.
Binder is an important component in coatings, which plays a decisive role in the performance of coatings and coating films.
Pigment is also an integral part of the coating film, because it cannot form the coating film independently of the main film-forming substance, so it is called the secondary film-forming substance. Its main function in the coating is to make the coating film have the required various colors (instrument: color difference meter) and a certain hiding power, and it also has a certain influence on the performance of the coating film.
Filler, also known as extender pigment, its main function is to supplement the required pigment after the coloring pigment makes the coating film have a certain covering power and color, so as to fill the coating film to increase the thickness of the coating film and improve the quality of the coating film. Durability and hardness (instrument: Hardness Tester), reduce the shrinkage of the coating film, etc. In addition, the use of fillers is mainly to reduce the cost of the coating. Additives are also called auxiliary film-forming substances. The main function is to improve coatings and coatings Some properties of the coating. Although the general dosage is small, it has a significant impact on the performance of the coating.
Solvent (or water) is also an auxiliary film-forming substance. The main function is to adjust the viscosity and solid content of the paint.