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.

Selection of Coatings:

The coatings applied to colour coated coils are chosen based on the specific environmental conditions and intended use. Different resin types provide varying levels of durability and performance:

• Polyester (PE) and Silicone Modified Polyester (SMP): Suitable for general-purpose applications where moderate weather resistance and aesthetic appeal are required.
• Polyvinyl Chloride Plastisol (PVC): Offers enhanced flexibility and impact resistance, commonly used in applications requiring resilience to harsh weather conditions.
• Polyvinylidene Chloride (PVDC): Provides excellent barrier properties against moisture and chemicals, suitable for applications demanding superior protection.

Users can select the appropriate coating based on their specific application needs, ensuring optimal performance and longevity of colour coated coils in diverse environments and industries.

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.

Detailed Parameters:

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:

Shandong Decho Building Materials Technology Co., Ltd (hereafter called “DBM” ) is a professional manufacturer and exporting company of coated steel coils and sheets, with over 13 years of experience in steel industry and 11 years of steel mill work experience, with extensive product knowledge and experience in production process, especially for the supply of coated steel coils with a stable and reliable supply chain of manufacturers and logistics.

DBM is always in pursuit of and committed to providing high quality products and services. Our company has professional quality inspection team members, for each batch of orders can be fully on-site testing and provide test reports, can also accept any third-party testing company on-site testing, we can do is to ensure that each order goods delivered to a high standard, to achieve customer satisfaction, to achieve win-win cooperation.

DBM can meet the need to use colour steel plate as raw material for building. Decho Building Materials colour steel plate is mainly processed into, for example, colour steel corrugated board or colour steel composite sandwich board after our colour steel plate is widely used in the construction of airports, freezers, steel plants, warehouses, and other industrial buildings and commercial buildings, such as the roof of the colour steel tiles, colour steel plate sandwich walls and doors.

DBM only focus on high standard coated coils with warranty service, We are your strict gatekeeper and faithful partner in China import , We always been committed to becoming your long-term reliable supplier in China.