Concept Insulation composite panels are made by combining color-coated steel sheets or other panels with a bottom plate and an insulating core material using adhesives or foaming techniques. These composites are widely used in industrial applications such as corrosion protection, pressure vessel manufacturing, electrical construction, petrochemicals, pharmaceuticals, light industry, and automotive sectors. Composite materials can be categorized into different forms like composite plates, pipes, and rods based on their structure. Common composite methods include explosive bonding, explosive rolling, and traditional rolling processes. Applications 1. Industrial plants and warehouses 2. Cold storage facilities and packaging boxes 3. Light steel residential buildings and mezzanines 4. Mobile boardrooms 5. Clean rooms, air conditioning chambers, and similar environments Advantages 1. Lightweight, typically around 10–14 kg/m², which is about 1/30th the weight of brick walls 2. Excellent thermal insulation, sound absorption, and sealing properties 3. Easy to install, reducing construction time by over 40% 4. Attractive appearance with vibrant colors, eliminating the need for additional surface decoration 5. High strength suitable for structural use, capable of withstanding bending and compression, allowing for structures without beams or columns Main Board Materials 1. Surface/floor materials include color-coated steel, galvanized sheets, stainless steel, aluminum foil, PVC, and plywood. 1.1 Properties of Different Sheet Types (1) Color-Coated Steel Sheets These are made from hot-dipped or galvanized substrates, with a durable finish that resists peeling. For composite panels, high-quality two-coat one-bake or two-coat two-bake coatings are preferred. Defective sheets with issues like loose edges, uneven coating, or jagged surfaces should not be used. (2) Galvanized Sheets They may sometimes have poor adhesion, requiring proper surface treatment before use. (3) Stainless Steel Sheets Offer excellent corrosion resistance but can be difficult to process. Their bonding performance may also require improvement through surface treatments. (4) Aluminum Foil Paper This material combines aluminum foil with reinforced glass fiber ribs and kraft paper, offering flame retardant and fireproof properties. It’s ideal for insulation, heat resistance, and sound control in modern construction projects. (5) PVC Sheets Made from polyvinyl chloride, these sheets are lightweight, smooth, and resistant to moisture, sound, and chemicals. They are easy to cut, weather-resistant, and simple to clean, making them a versatile choice. (6) Plywood Plywood has limited length per piece, and its compactness isn’t always ideal, leading to potential cracking issues that are hard to resolve. Main Core Materials 2. Core materials commonly used include EPS, rock wool, glass wool, flame-retardant honeycomb panels, and polyurethane. 2.1 Overview of Core Materials (1) Foam Board (EPS) Produced from expandable polystyrene particles, it is pre-expanded and then molded into a closed-cell structure, offering good insulation and lightweight properties. (2) Polyurethane Known for its superior thermal insulation and fire-resistant properties, polyurethane boards are typically used in composite panels at a density of 30–40 kg/m³. (3) Rock Wool Made from basalt, it is melted and spun into fibers, then bonded and baked into large panels. It is non-combustible and ideal for fire safety and insulation. (4) Glass Wool A lightweight, heat-resistant, and elastic material used in industries like chemical, pharmaceutical, and aerospace. It provides excellent thermal and acoustic insulation. (5) Flame-Retardant Honeycomb Panel A B1-class fireproof material with high compressive strength, no toxic emissions, and recyclability. It serves as an eco-friendly alternative to wood in various composite systems. (6) Polyurethane As mentioned earlier, this material is highly effective for both fire resistance and insulation, with a typical weight range of 30–40 kg/m³ for composite panels. Double Tube Tri-Proof Light,Double Tube Light, Tri-Proof Light Without Tube,Double-Ended Classic Tubes Land of Lights Electric Appliance Co., LTD , https://www.loloutdoorlight.com