Products Introduction

Color coated sheet coil is a versatile product made from various substrates, including hot rolled, galvanized, aluminum-zinc plated, cold rolled, tinned, and stainless steel substrates. The production process begins with thorough surface pretreatment, which includes degreasing and chemical treatment to ensure optimal adhesion and longevity of the coating.

Using a roller coating method, one or more layers of liquid paint are applied to the pretreated substrate. These layers are then baked and cooled, resulting in a durable, coated steel sheet. This process transforms the base material into high-quality color coated coils.

These color coated coils are primarily used in the construction industry for applications such as building roofs, walls, and steel structure plants. They are also widely employed in the manufacturing of home appliances, purification and clean plants, and other industrial fields. The product’s versatility makes it suitable for a variety of uses, ensuring both aesthetic appeal and functional durability.

Commonly used specifications for color coated sheet coils range in thickness from 0.2mm to 1.0mm. The typical domestic widths are 1000mm and 1200mm, while the main export dimensions include 940mm, 1200mm, 1219mm, and 1250mm. These variations in size cater to different market needs and application requirements, providing flexibility for diverse project specifications.

Product Category

Color coated plates combine the benefits of organic polymers and steel, offering a unique blend of properties that make them highly versatile and valuable in various applications. They feature the colorability, formability, corrosion resistance, and decorative qualities of organic polymers, along with the high strength and ease of processing of steel. This combination enables these plates to be easily punched, bent, deep-drawn, welded, and processed in other ways, making them practical, decorative, and durable.

Classification Overview

Color coated sheets come in a vast array of over 600 varieties, but due to the diversity and lack of a unified classification system, they are generally categorized based on customary practices. Each manufacturer may have unique equipment, technologies, and product varieties, further complicating standardized classification. Here, we outline the general categories for clarity.

1. Classification by Substrate

Color coated plates can be made using various substrates, each offering distinct properties:

• Cold rolled sheet
• Hot-dip galvanized sheet
• Electro-galvanized sheet
• Alloying plate
• Galvanized aluminum plate
• Galvanized zinc alloy plate
• Tin plate
• Chrome plate
• Aluminum plate

2. Classification by Processing Technology

Based on the coating methods and processing steps, color coated plates can be classified as follows:

• Coating Methods:
  • Roller coating method
  • Spraying method
  • Powder coating method
  • Compound film method
  • Printing method
• Coating and Baking Cycles:
  • Single coating and baking
  • Double coating and baking
  • Triple coating and baking
  • Quadruple coating and baking
• Embossing and Printing Types:
  • Wood grain plate
  • Marble grain plate
  • Skin grain plate
  • Cement mortar grain coating steel plate

Colour Coated Coil Usage: 

Colour coated coil has light weight, beautiful and good anti-corrosion properties, and can be directly processed, the colour is generally divided into grey and white, sea blue, brick red, mainly used in advertising, construction, home appliance industry, electrical appliances industry, furniture industry and transport industry.

The coatings used for colour coated rolls are selected according to the use of different environments with suitable resins, such as polyester silicone modified polyester, polyvinyl chloride plastisol, polyvinylidene chloride and so on. Users can choose according to the use.

Detailed Parameters:

Coating Structures: 

Type of coating structure

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

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

2/2: Top and bottom surfaces are coated twice each and baked twice.

Usage of different coating structures:

2/1: The corrosion resistance and scratch resistance of single layer back coating is poor, but it has good adhesion, mainly used for sandwich panels.

It is mainly used for sandwich panels;

2/1M: backcoat with good corrosion resistance, scratch resistance and moulding properties, good adhesion, suitable for single-layer compression moulding panels.

2/1M: good corrosion resistance, scratch resistance and moulding properties, good adhesion, suitable for single-layer pressboards and sandwich panels.

2/2: double-layer backing paint with good corrosion resistance, scratch resistance and processability, mostly used for single-layer pressboards, but with good adhesion.

Most of them are used for single-layer moulding board, but its adhesion is not good, and it is not suitable for sandwich board.

Test Process & Results: 

Paint Suppliers & Partners: 

We only choose the top-level paint suppliers for our pre-painted steel coils and sheets,

AkzoNobel, Sherwin-Williams Valspar, Beckers, PPG Industries, Nippon, KCC are our solid paint suppliers.

Their best paint materials decide our steel coils quality. 

Package & Delivery Shipment : 

Delivery time: 30 days deliver to loading port

Shipment Methods: Container, Breakbulk, Railway, Trucks 

Projects: