Wood paint refers to a kind of resin paint used for wooden products, including polyester, polyurethane paint, etc., which can be divided into water-based and oil-based. According to the luster, it can be divided into high gloss, semi matte and matte; according to the use, it can be divided into furniture paint, floor paint, etc., and wood paint can also be divided into water-based and oil-based wood paint, but no matter what kind of paint is divided into primer and finish paint, it indicates different when used in different positions.
The composition of wood finish and primer is different:
Composition of wood paint finish: transparent primer = film forming substance + filler + solvent + auxiliary agent; solid primer = film forming substance + pigment + filler + solvent + auxiliary agent.
Composition of top coat: transparent top coat (varnish): film forming substance + solvent + auxiliary agent; solid top coat = film forming substance + opaque pigment + solvent + auxiliary agent; transparent colored top coat = transparent top coat (varnish) + color essence; colored sealing agent = sealing agent + color essence.
The properties of wood finish and primer are different:
Performance characteristics of primer: the main function of primer is to fill pores, improve the thickness of film, make objects achieve a certain decorative effect, so as to reduce the amount of topcoat. Primer generally has certain filling and polishing properties, solid primer also has certain covering power.
Performance characteristics of top coat: it has considerable light, color, hardness, adhesion, leveling, etc.
The judgment method of wood paint finish and primer is different:
The judgment method of primer:
1. Surface dry (touch dry)
2. Grindable time
3. Filling, polishing, hardness, adhesion, yellowing resistance, transparency and covering power.
The key to judge the quality of finish paint:
Leveling, glossiness, drying time, transparency, yellowing resistance, hardness, adhesion, scratch resistance, flexibility, fullness and hand feel.
The price of wood finish and primer is different:
The materials and functions of primer and finish are different, resulting in different prices, but most of them are more expensive for top coat and less expensive for primer.
Wood paint is divided into primer and finish. Some powerful finish can have a good coating effect without primer. This kind of paint is called two in one paint, but the paint consumption is very large. Any paint used for wood can not use primer, but must use top coat. Top coat is the final display of decoration effect. Without top coat, the effect of paint film is poor, which can not protect and beautify furniture.
Source: Hualong paint