Table of Contents
- Color Steel Sandwich Panel Core Material Types
- Type of Outer Metal Sheet
- Advantages of Color Steel Sandwich Panel
- Color Steel Sandwich Panel Application Scenarios
- Conclusion
Color steel sandwich panel, also known as color steel composite panel, is a new type of building material composed of two layers of color coated steel and core material, which are rolled, foamed and bonded with high-strength adhesive.
Color Steel Sandwich Panel Core Material Types
- Polystyrene sandwich panel (EPS sandwich panel): lightweight, good thermal insulation, low cost, but poor fire resistance (B1 level).
- Extruded polystyrene sandwich panel (XPS sandwich panel): better thermal insulation performance than EPS sandwich panel, high compressive strength, excellent moisture resistance.
- Rigid polyurethane sandwich panel (PU sandwich panel): excellent thermal insulation performance, fire rating up to B1 ~ B2 level, high bonding strength.
- Polyester sandwich panel (PIR sandwich panel): excellent fireproof performance, thermal insulation effect is better than PU sandwich panel.
- Phenolic sandwich panel (PF sandwich panel): excellent fire protection and heat preservation performance, but the cost is higher.
- Rock wool sandwich panel (RW sandwich panel): Class A non-combustible material, fire prevention, sound insulation, but higher density.


Type of Outer Metal Sheet
Color steel sandwich panel outer metal plate is made of cold rolled steel (CRC), electro-galvanized steel (EGI), hot-dip galvanized steel (HGI), hot-alumina-zinc-plated steel (GL) as the substrate, which is degreased, phosphatized, chromated, continuously plated with organic coating and baked.
Metal sheet specifications
- Thickness: 0.2mm – 0.8mm
- Width: 950mm – 1200mm
- Length: 3m, 4m, 6m, 9m or customized
- Metal plate type: Flat plate, Corrugated plate, Hidden fastening plate
Metal sheet coating
- PE Coating: Coating color is rich, flexibility is good, cost is low, but weathering and corrosion resistance is general, easy to fade and chalking after long-term exposure to outdoor.
- SMP Coating: Silicon is added into PE coating, which has better weather resistance, corrosion resistance and heat resistance than PE coating, and better color retention, which can extend the service life.
- HDP Coating: Using specially formulated polyester resin, the coating is more resistant to weathering than SMP, and can withstand UV rays and harsh climate, with longer color retention (up to 15 years or more).
- PVDF coating: the coating has strong chemical stability, excellent weather resistance, corrosion resistance and UV resistance, and long-lasting color (25 years without fading), but the cost is higher.


Advantages of Color Steel Sandwich Panel
- Colored steel sandwich panels are lightweight and high-strength, easy to transport and install, and have good compression and bending resistance.
- The core material has low thermal conductivity and has the function of heat preservation and insulation.
- And there are many core materials with different fire protection levels to meet various needs.
- The outer layer of color-coated steel is corrosion-resistant, the joints can be sealed, and it has strong waterproof and moisture-proof properties.
- Color-coated steel has rich colors (customizable), the surface can be embossed and frosted, and the appearance is beautiful.
- It has good comprehensive benefits and is a highly efficient and environmentally friendly building material with great potential.


Color Steel Sandwich Panel Application Scenarios
Color steel sandwich panels are often used as roof panels, wall panels, partition panels, cold storage panels, and clean panels. The application scenarios include:
Large industrial plants, warehouses, logistics centers, gymnasiums, supermarkets, hospitals, cold storage, refrigerated trucks, mobile homes, expandable container houses, building additions, clean workshops, and places that require thermal insulation and fire protection.
Conclusion
Wanzhi Steel is a professional metal sandwich panel supplier in China, which can provide metal sandwich panels of various materials, including color steel sandwich panels.
It has multiple substrate production lines, hundreds of press equipment, self-supplied raw materials, and competitive prices.
The new color steel sandwich panel – metal carved panel, is also popular with users. It has a variety of colors and patterns, including brick pattern, stone pattern, water ripple, tile pattern, mosaic pattern, etc., mainly used for exterior wall insulation decoration.