Color steel sandwich panels

I. Core Materials and Their Features

1. Polystyrene (EPS): It is lightweight and has good heat - insulation properties. However, its fire - resistance is relatively weak, which limits its use in fire - sensitive areas. For example, in some simple temporary construction sites like the sheds for storing tools during construction, EPS - core color steel sandwich panels are sometimes used due to their low cost and easy installation.

2. Rock Wool: This core material is highly fire - resistant, with a fire - resistance rating often reaching Class A. It can withstand high temperatures up to about 500 °C. Rock wool color steel sandwich panels are ideal for buildings with strict fire - protection requirements, such as industrial plants where flammable materials are processed, and they can effectively prevent the spread of fire.

3. Polyurethane (PU): PU - core sandwich panels offer excellent thermal insulation, heat - insulation, and sound - insulation effects. The polyurethane added with fireproof materials does not support combustion. They are often used in buildings where energy - conservation and noise - reduction are important, like high - end residential buildings and some commercial buildings.

4. Phenolic Foam (PF): PF - core panels have outstanding fire - prevention and heat - insulation performance. They are low - smoke and low - toxicity. The heat - insulation effect of phenolic foam is about twice that of polystyrene. They are suitable for public buildings and cleanrooms where both fire - safety and environmental protection are highly valued.

II. Applications

1. Industrial Buildings: They are mainly used for the roofs and exterior walls of industrial plants and warehouses. Compared with traditional precast concrete slabs or asbestos slabs, color steel sandwich panels, combined with light - steel structures, are lighter in weight, faster to install, and more flexible in layout. For multi - storey industrial workshops, sandwich panels can be used not only for the roof but also for the outer walls, and their changeable colors and shapes can beautify the building appearance.

2. Public Buildings: Applicable to public buildings with large - space requirements, such as airport terminals, bus or railway station waiting halls, stadiums, theaters, exhibition pavilions, and museums. These buildings have high requirements for light weight, heat preservation, fire - safety, waterproofing, sound absorption, and durability, and color steel sandwich panels can meet these needs to a certain extent.

3. Modular and Temporary Buildings: Modular houses built with sandwich panels are popular due to their light overall weight, flexible combination, convenient and fast construction, no need for secondary decoration, and easy disassembly and relocation. They are often used as temporary offices, dormitories in construction sites, and can also be used to build up - storey houses on existing rooftops to expand the usable area without overloading the original building.

4. Purification Engineering: In industries like electronics, medicine, aerospace, and precision instrument manufacturing, where high - cleanliness production environments are required, color - coated sandwich panels are widely used as interior wall and ceiling materials because they are not easy to adhere to dust, easy to clean, and have fewer joints.

III. Installation and Specifications

1. Installation: Color steel sandwich panels often use tongue - and - groove inserts, which are convenient for installation, save time and materials, and can ensure good flatness and high strength after installation, especially suitable for suspended ceilings and partition systems.

2. Specifications:

- Thickness: The thickness of the panel is usually in the range of 50 - 250 mm, and the thickness of the outer steel plate is generally 0.2 - 1.0 mm.

- Length: Due to continuous molding production, the length of the board can be customized according to user needs.

- Width: Common widths include 1150mm, 1200mm, 960mm, and 950mm.