What is color coated roll

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

Overview of prepainted rolls

The color-coated steel strip using hot-dip galvanized steel strip as the base material is not only protected by the zinc layer, but the organic coating on the zinc layer plays a covering and protective role to prevent the steel strip from rusting, and its service life is longer than that of the galvanized strip, about 1.5 times.

Color coated roll use

Color-coated rolls are light, beautiful, and have good anti-corrosion properties, and can be processed directly. The colors are generally gray, sea blue, and brick red. They are mainly used in advertising, construction, household appliances, electrical appliances, furniture, and transportation. Industry.

The coating used for color-coated coils should select appropriate resins according to different use environments, such as polyester silicon-modified polyester, polyvinyl chloride plastisol, polyvinylidene chloride, etc. Users can choose according to the purpose.

Coating structure

v Coating structure type

2/1: Coat the upper surface twice, coat the lower surface once, 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 twice.

v Application 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 better corrosion resistance, scratch resistance and formability, and has good adhesion

Suitable for single-layer profiled panels and sandwich panels.

2/2: The corrosion resistance, scratch resistance and processability of the double-layer back paint are better, and most of them are used for single

Laminated panels, but their poor adhesion, should not be used for sandwich panels.