Paint-coated color steel plate

Paint-coated color steel plate, also known as color coated steel plate, is a metallurgical product made from cold-rolled sheet, galvanized sheet or aluminum zinc coated sheet as the substrate, coated with organic coating after degreasing and phosphating treatment, and baked. Paint-coated color steel plateIt has the characteristics of light weight, high strength, corrosion resistance and decorative properties. Its surface can present patterns such as wood grain and cloth grain, and is widely used in the fields of architecture (accounting for 79%), home appliances, transportation, and decoration.

1.  Core Features

Structural composition

Paint-coated color steel plate are usually composed of two layers of metal panels and a middle core material, including polystyrene (EPS), rock wool, polyurethane, etc. Among them, rock wool core material has excellent fire resistance, and phenolic foam core material has both thermal insulation and flame retardant properties.

2. Production process

Paint-coated color steel plate The mainstream method is roller coating (accounting for 90%), which includes substrate pretreatment, primer coating, and baking curing. High end products adopt a three coat and three bake or four coat and four bake process, with a coating thickness of generally 20-25 μ m (primer) and 8-10 μ m (topcoat).

3. Paint-coated color steel plate Application scenarios

Industrial plants and warehouses: short construction period and low cost.

Temporary buildings: such as construction site offices and prefabricated houses.

Logistics and warehousing: Lightweight structures are suitable for large-span needs.

4. Comparison of core features

feature‌	Describe‌	technical parameters‌
structural composition‌	Metal panel + core material (polystyrene/EPS, rock wool, polyurethane, etc.)	The fire rating of rock wool core material is Class A, and that of EPS core material is Class B1
production process‌	Mainstream roll coating method (90%), including pretreatment, coating, and baking	Coating thickness: primer 20-25μm, topcoat 8-10μm
surface treatment‌	It can present patterns such as wood grain and cloth pattern, and fluorocarbon coating has the best weather resistance	Service life: 10-15 years for ordinary coatings, over 20 years for fluorocarbon coatings

5. Selection and Fire Prevention Suggestions

Paint-coated color steel plate Key points for purchasing

Core material selection: Rock wool or phenolic foam and other flame retardant materials are preferred.

Coating type:Paint-coated color steel plate Fluorocarbon coating has better weather resistance.

Supplier qualification: It is necessary to have formal production capacity, such as Shanghai Pengwei, Wuhan and Yiyuan enterprises.

Fire prevention measures

Stay away from open flame operations such as welding and gas welding.

Wire conduit protection to avoid threading wires inside the core material.

Equip fire extinguishing equipment and maintain a safe distance of 6 meters between buildings.

6. Application scenarios and risks

Scene type‌	Advantages‌	Risk Warning‌
Industrial plant/warehouse	Short construction period and low cost	Flammable core material fires release toxic gases such as carbon monoxide and hydrogen cyanide
temporary building	Can be quickly disassembled and reused	Electrical faults account for 67% of fire causes
logistics warehousing	Lightweight structures are suitable for large-span requirements	Need to maintain a distance of at least 6 meters between buildings

7. Purchase Guide

Dimension selection‌	‌Suggestion‌
Core material selection	Prefer rock wool or phenolic foam (excellent flame retardancy) to avoid EPS core material
Price Reference	Polystyrene core material costs 50-150 yuan/square meter, while rock wool core material costs 30% -50% more

Please consult the manufacturer for specific prices, which shall be subject to the manufacturer's actual ex-factory price.