Comparison of base paint
The composition of primer: 1. Transparent primer: resin + extender pigment + solvent + auxiliary
- Colored primer: resin + extender pigment + colored pigment + solvent + auxiliary agent
The composition of the top coat: 1. Transparent top coat: resin + solvent + additives
- Colored topcoat: resin + colored pigment + solvent + additives
Color trimming finish: transparent finish + color precision
Colorant: solvent + color essence
The function of the primer:
Primer: Generally divided into two types: prime primer and primer:
- The first degree primer is a kind of sealing primer, which mainly protects the board and guarantees the coating quality
- The main function of the primer is to fill the pores, increase the thickness of the coating film, and make the object achieve a certain decorative effect, thereby reducing the amount of topcoat. The primer generally has Certain filling and sanding properties, colored primer also has certain hiding power
Topcoat: The function of topcoat is mainly to play the role of decoration and protection. From a functional point of view, the topcoat must have a certain degree of gloss, color retention, hardness, and adhesion ( Adhesion), leveling, etc., which are also the reasons why the topcoat does not have filling properties