COLOUR COATING PLATE COMPANY

Introduction of Color Steel Plate

Date of release:2019-03-07 Author: Click:

Coloured steel sheet - Coloured coated steel sheet is a product made of cold rolled steel sheet with color coated sheet quoted. Galvanized steel sheet, hot-dipped galvanized steel sheet or aluminized galvanized steel sheet are treated by degreasing, phosphating and complexing on the surface, then coated with organic paint and baked.

Polyester (PE), silicone modified resin (SMP), high weatherproof polyester (HDP), polyvinylidene fluoride (PVDF) are the common coatings for color coated steel sheets. The coatings structure is divided into two coatings, one baking and two baking. The thickness of the coatings is generally 20-25u on the surface, 8-10u on the back, and the external use of the coatings should not be lower than 20u on the surface and 10u on the back. The commonly used standards for color coated steel sheets are ASTM A527 (galvanized), ASTM AT92 (galvanized), JIS G3302 of Japan, EN/0142 of Europe, KS D3506 of Korea and Q/BQB420 of Baosteel.

Coating propertie


* Polyester (PE)

Good adhesion, wide range of formability and outdoor durability, moderate chemical resistance. The service life is 7-10 years.

* Silicon modified resin (SMP)

The film has good hardness, wear resistance and heat resistance, as well as good external durability and non-pulverization, gloss retention and flexibility are limited. The service life is 10-15 years.

* High Weather Resistance Polyester (HDP)

It has excellent ultraviolet resistance and high durability. Its main properties are between polyester and fluorocarbon. The service life is 10-12 years.

* Polyvinylidene Fluoride (PVDF)

It has good formability and color retention, excellent outdoor durability and pulverization, solvent resistance, and limited color. The service life is 20-25 years.

Color steel plate, commonly known as color steel plate, is based on high-quality cold-rolled steel plate, hot-dip galvanized steel plate or aluminized galvanized steel plate. After degreasing, phosphating and chromate treatment, it is coated with organic coating and baked. It has the characteristics of light weight, high strength, bright color and good durability. It is widely used in construction, household appliances, decoration, automobile and other fields.

The strength of color steel plate depends on the substrate material and thickness, and the durability depends on the coating (318g/m2 galvanizing amount) and the surface coating. The coating includes polyester, silicone resin, fluorine resin, etc. The thickness of the coating is more than 25um. The coating structure has two coatings, one baking and two baking. The maintenance-free service life can be 20-30 years depending on the ambient atmosphere.


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