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China Suppliers for PUR/PIR Foam Core Seamless Sandwich Panels - Energy-Efficient Exterior Wall Solutions from Factory

In the modern construction industry, China has emerged as a leading supplier and factory for innovative building materials such as PUR (polyurethane) and PIR (polyisocyanurate) seamless insulated exterior wall panels. These advanced sandwich panels are engineered to enhance energy efficiency while offering exceptional aesthetic appeal. Ideal for both residential and commercial applications, these panels effectively create a barrier that significantly reduces heat transfer from the external environment to the interior, As sustainability becomes a priority in construction, PU and PIR panels provide an eco-friendly choice compared to traditional materials. Their impressive energy-saving capabilities contribute to lower greenhouse gas emissions, and their extended lifespan helps decrease waste. Choose China’s trusted suppliers and factories for high-quality, sustainable insulated wall panels that meet the demands of modern construction

    Products Description

    Polyurethane (PUR) and Polyisocyanurate (PIR) are the multifunctional foam core material widely used in various industries due to its excellent thermal insulation properties, mechanical strength and moisture resistance. Seamless insulated exterior siding sandwich panels are made with a rigid foam core sandwiched between two layers of durable facing material, typically made of metal or other alloy composite materials. The seamless design improves the overall performance and longevity of the structure by eliminating joints and joints, common weak points in traditional wall systems.

    Product Details

    TECHNICAL PARAMETERS OF POLYURETHANE CORE Cam-Lock SANDWICH PANEL
    THICKNESS Effective Width Length Density Fire Resistance Weight Heat Transfer Surface Thickness Surface Material
    Coefficient Ud,s
    mm mm m Kg/m³ / Kg/㎡ W/[m x K] mm /
    100 920 10m 40±2 B2 Grade 11.8 ≤0.024 0.3–0.8 Customized
    120 960 Max Customizable 12.7 Customized
    150 1000 13.9
    200 16.1

    The Joint

    The complex design of split joint of the sandwich panels are widely used in industrial, commercial, and agricultural buildings, including warehouses, cold storage facilities and manufacturing plants.

    This kind of complicated joint make the panels connect to each other tightly and seamless, when showing a beautiful appearance and maintain the insulation at the same time. Also the ease of installation and low maintenance requirements make them a cost-effective option for modern construction projects, helping to increase sustainability and efficiency.

    Core Exterior (1)
    Core Exterior (2)

    Surface Profile

    Surface Profile
    Miro
    Smooth
    Linear
    Embossed

    Surface Material

    Our PUR (polyurethane) / PIR (polyisocyanurate) seamless insulated exterior wall panels have multiple customizable surface steel material and color choices such as PPGI, Stainless steel, embossed aluminum etc. Their durability, moisture resistance and chemical resistance further enhance their appeal.
    — PPGI

    PPGI, or Preprinted Galvanized Iron, is a versatile metal material widely used in construction and manufacturing. It features a galvanized steel base that is coated with a layer of paint for excellent corrosion resistance and durability. Key features include its lightweight nature and its availability in a variety of colors and finishes for aesthetic customization. PPGI is also very environmentally friendly as its production process produces less waste. PPGI has a long service life and minimal maintenance requirements, making it ideal for roofing, wall cladding and other applications.

    Typical Color (PPGI)
    Typical Color PPGI
    More Colors

    PPGI has a variety of color finishes, we provide customized color service, please contact us for whatever color you need.

    More Colors PPGI
    — Other Surface Material

    To obtain better or specific function, other surface materials can also be customized.
    Such as Stainless Steel (SUS304 / SUS201), Aluminum, or other alloy (Zinc, Magnesium, Titanium, etc.).

    Ti-Mg-Zn-Al Alloy
    Ti-Mg-Zn-Al Alloy
    Embossed Aluminum
    Embossed Aluminum
    Stainless Steel SUS304
    Stainless Steel (SUS304)
    — Extra Coating

    The surface material can also be enhanced with various advanced coatings to improve its performance and durability.

    Typical coating includes:

    • 1 PVDF (Polyvinylidene Fluoride): Known for its exceptional resistance to UV radiation, chemicals, and weathering, PVDF provides a glossy finish that retains color vibrancy over time. This makes it ideal for outdoor applications, particularly in architectural projects.
    • 2 HDP (High-Durability Polyester): HDP coatings offer superior durability and scratch resistance, making them suitable for high-traffic areas and industrial environments. They protect against corrosion and environmental factors, extending the lifespan of the material.
    • 3 EP (Epoxy Polyester): This coating combines the benefits of epoxy and polyester, providing excellent adhesion and resistance to chemicals and moisture. EP coatings are ideal for indoor applications and environments where chemical exposure is a concern.
    Extra Coating

    These advanced coatings significantly enhance the functionality and longevity of surface, making it a preferred choice for various applications in construction and manufacturing.

    More About PUR/PIR Foam Core Exterior Wall Seamless Sandwich Panel

    PIR/PUR seamless insulation exterior wall panels represent a major advancement in construction technology. Their combination of energy efficiency, moisture resistance, durability, aesthetic versatility, and ease of installation make them an attractive choice for modern building projects. As the demand for sustainable and efficient building solutions continues to grow, these panels will play a vital role in shaping the future of the construction industry. Whether new construction or renovation, sandwich panels offer a reliable and effective way to enhance the performance and appearance of any structure.

    When installed in a cold storage facility, these panels create a barrier that minimizes heat transfer from the external environment to the interior space. This is critical to maintaining low temperatures, as even small fluctuations can cause temperature-sensitive products to spoil. The outer metal layer not only provides structural support but also protects the foam core from physical damage and environmental exposure.

    Key features include:

    • Energy Efficiency One of the most significant advantages of PIR and PU panels is their excellent thermal insulation capabilities. Rigid foam core has a high R-value, which means it effectively blocks heat transfer. This reduces energy consumption for heating and cooling, thereby lowering utility bills and carbon footprint.
    • 💧 Moisture-Proof PIR and PUR foam core itself is moisture-proof and helps prevent mold growth. This property is particularly beneficial in high-humidity climates or areas with easy access to water. The seamless design further minimizes the risk of water penetration, ensuring the building remains dry and comfortable.
    • 🛡️ Durability and Longevity PIR and PUR sandwich panels are designed to withstand harsh environmental conditions, including extreme temperatures, UV radiation, and physical impact. Their sturdy construction ensures they maintain structural integrity over time, reducing the need for frequent repairs or replacements.
    • 🎨 Aesthetic Variety These panels are available in a variety of colors, textures, and finishes, allowing architects and builders to achieve the desired aesthetic for their projects. The seamless nature of the panels also contributes to a sleek, modern look that enhances the overall visual appeal of the building.
    • 🔧 Easy to Install PIR and PUR core foam seamless insulation sandwich panels are lightweight and easy to handle, simplifying the installation process. Their prefabricated nature allows for rapid assembly on site, reducing labor costs and construction time. Additionally, the seamless design minimizes the need for additional sealing or finishing work.

    Frequently Asked Questions

    Q What is the difference between PUR and PIR foam core sandwich panels?
    PUR (Polyurethane) and PIR (Polyisocyanurate) are both rigid foam core materials used in sandwich panels. PIR panels have a higher isocyanurate content, which gives them superior fire resistance and slightly better thermal performance compared to PUR panels. Both types offer excellent insulation, moisture resistance, and mechanical strength, making them suitable for a wide range of construction applications.
    Q What thickness options are available for the sandwich panels?
    Our PUR/PIR Cam-Lock sandwich panels are available in standard thicknesses of 100mm, 120mm, 150mm, and 200mm. The effective width ranges from 920mm to 1000mm depending on the thickness selected, and panel lengths can be customized up to the maximum specified. Custom thickness options may also be available upon request.
    Q What surface materials and finishes can be customized?
    We offer a wide range of surface material options including PPGI (Prepainted Galvanized Iron), Stainless Steel (SUS304/SUS201), Embossed Aluminum, and special alloys such as Ti-Mg-Zn-Al. Surface coatings including PVDF, HDP, and EP can be applied for enhanced UV resistance, durability, and chemical resistance. Colors and textures are fully customizable to meet your project requirements.
    Q Are these panels suitable for cold storage facilities?
    Yes, PUR/PIR seamless sandwich panels are highly suitable for cold storage applications. The rigid foam core provides exceptional thermal insulation with a heat transfer coefficient of ≤0.024 W/[m×K], effectively minimizing heat transfer and maintaining stable low temperatures. The seamless Cam-Lock joint design further eliminates thermal bridges and prevents moisture infiltration, which is critical for preserving temperature-sensitive goods.
    Q How does the Cam-Lock joint system work and what are its advantages?
    The Cam-Lock joint system features a precisely engineered interlocking mechanism that allows panels to connect tightly and seamlessly without visible gaps or fasteners. This design eliminates weak points commonly found in traditional wall systems, improves overall structural integrity, and maintains continuous thermal insulation across the entire panel surface. It also results in a clean, modern aesthetic appearance and significantly reduces installation time.
    Q What is the fire resistance rating of these sandwich panels?
    Our PUR/PIR sandwich panels carry a B2 Grade fire resistance classification, which meets the standard requirements for normal combustibility in building applications. For projects requiring higher fire safety standards, please contact us to discuss upgraded fire-resistant panel options with enhanced core formulations and surface coatings that can meet stricter fire performance requirements.

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