Color-coated coils are based on hot-dip galvanized sheets, Galvalume sheets， electro-galvanized sheets, etc., after surface pretreatment (chemical degreasing and chemical conversion treatment), one or more layers of organic coatings are applied on the surface, and then The product is baked and cured. It is named after the colored steel coil coated with various organic coatings of different colors, referred to as color coated coil.

The color-coated steel strip using hot-dip galvanized steel strip as the base material is protected by a zinc layer, and the organic coating on the zinc layer plays a role of covering and protection to prevent the steel strip from rusting. The service life is longer than that of the galvanized strip. 1.5 times.

Color-coated rolls have light weight, beautiful appearance and good anti-corrosion performance, and can be directly processed. The colors are generally divided into gray, sea blue and brick red. They are mainly used in advertising, construction, home appliance industry, electrical appliance industry, furniture industry and transportation. industry.

The paint used for color-coated rolls can be selected from suitable resins according to the use environment, such as polyester silicon modified polyester, polyvinyl chloride plastisol, polyvinylidene chloride, etc. The user can choose according to the purpose.

Coating structure type

2/1: Apply twice on the upper surface, once on the lower surface, and bake twice.

2/1M: Coat the upper and lower surfaces twice, and bake once.

2/2: Coat the upper and lower surfaces twice, and bake them twice.v Uses of different coating structures:

2/1: The corrosion resistance and scratch resistance of the single-layer back paint are poor, but it has good adhesion.

To be applied to sandwich panels;

2/1M: The back paint has good corrosion resistance, scratch resistance and processing formability, and has good adhesion

It is suitable for single laminated board and sandwich board.

2/2: The double-layer back paint has better corrosion resistance, scratch resistance and processing formability. Most of them are used for single

Laminated board, but its adhesion is not good, it is not suitable for sandwich board.