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Panel systems

PU Sandwich Panel

PU sandwich panels are high-performance insulated structural elements with a polyurethane core sandwiched between two layers of steel sheets.

Core Material
Polyurethane Foam Core
Width
950mm, 1150mm
Thickness
50mm, 75mm, 100mm

Product overview

PU sandwich panels are high-performance insulated structural elements composed of a core made of polyurethane foam. This core is sandwiched between two layers of either galvanized or color-coated steel sheets, which are bonded through cold-pressing or hot-pressing processes.

These polyurethane materials are known for their excellent insulation properties, thermal resistance, lightweight design, high strength, and structural load-bearing capabilities. As a result, they are widely used in various applications, including building walls and roofs, cold chain logistics, industrial facilities, and cleanrooms.

Specifications and Properties

Main Advantages of Polyurethane Sandwich Panels

Excellent Thermal Insulation Performance: The low thermal conductivity of polyurethane rigid foam enables sandwich panels to deliver significantly better thermal insulation than traditional materials at the same thickness, thereby greatly reducing energy consumption in buildings and equipment.

Light and High Strength: PU sandwich panels are not only lightweight, which simplifies transportation and installation, but they also boast outstanding compressive and bending strength, allowing them to be used directly as structural elements in building envelopes.

Self-extinguishing: Made with flame-retardant materials that comply with national Class B fire safety standards, PU sandwich panels offer good fire resistance.

Weather Resistance and Longevity: The panel coatings resist corrosion, fading, and aging. Besides, the core material remains stable and resistant to deformation, ensuring long-term performance.

Easy and Quick Installation: Polyurethane panels have precise dimensions and flexible installation options. The prefab and modular design can be quickly assembled, reducing construction time, lowering difficulty, and decreasing labor costs.

Environmental and Energy Saving: Made from eco-friendly materials, these sandwich panels generate minimal pollution during production, meet green building standards, and help reduce carbon emissions.

Applications of PU Sandwich Panels

Roof and Wall Cladding: PU panels are commonly used in the exterior walls and roofs of industrial, commercial, and residential structures because of their outstanding thermal insulation capabilities, durability against the elements, and straightforward installation process.

Refrigeration and Freezing Rooms: PU insulated panels maintain a constant low temperature, making them ideal for refrigeration rooms, freezers, and cooling facilities in the food and pharmaceutical industries.

Cleanrooms and Controlled Environments: PU sandwich panels are used in industries like pharmaceuticals, electronics, and food processing to create sealed, hygienic spaces that prevent contamination.

Prefab and Modular Structures: Polyurethane-insulated sandwich panels are lightweight and durable, enabling quick assembly of portable cabins, on-site offices, modular buildings, and temporary structures.

Agricultural Buildings: Used to isolate farm warehouses and storage facilities, protecting crops, livestock, and equipment from temperature fluctuations, moisture, pests, and chemicals.

Industrial Facilities: Such as warehouses, factories, and logistics hubs, utilize polyurethane sandwich panels to create sturdy, energy-efficient buildings that can withstand harsh environments while providing insulation and soundproofing performance.

Electrical and Maritime Industries: Polyurethane sandwich panels can also serve as electrical insulation materials and as lightweight, insulated structural components in the manufacturing of vehicles and ships.

FAQs About PU Insulated Sandwich Panels

1
How to Choose the Right Panel Thickness and Material?
When selecting panels, consider varying thicknesses and materials such as color-coated steel, stainless steel, or aluminum based on the specific environmental requirements. For example, stainless steel panels are commonly used in cold storage areas and clean rooms.
2
Can the Specifications and Dimensions be customized?
Absolutely! It's essential to choose the appropriate length, width, and thickness according to the construction design requirements. This practice helps prevent unnecessary waste from on-site cutting.
3
Can polyurethane sandwich panels be recycled?
Yes, they can be dismantled and recycled at the end of their service life, supporting sustainable building practices.
4
What factors should be considered during installation?
Proper site preparation, panel alignment, sealing of joints to ensure airtightness, and the use of appropriate fasteners are critical for maximizing performance and durability.
5
Do PU sandwich panels have fire-resistant properties?
Yes, they comply with various fire safety standards, with the PIR (polyisocyanurate) variant offering higher fire resistance than standard PUR (polyurethane) sandwich panels.

Specifications

Core Material

Polyurethane Foam Core

Width

950mm, 1150mm

Thickness

50mm, 75mm, 100mm

Core Density

Ranges from 35-45 kg/m³

Thermal Conductivity

Range of 0.020-0.028 W/(m.k)

Fire Resistance

Class B

Panel Material

Color steel, stainless steel, or aluminum alloy

Shape / Profile

Tongue-and-groove board

Adhesive

High-strength, environmentally friendly adhesive is used to bond the core material to the panel securely

Reference specifications for this model. Confirm final values and units for your selected configuration.

Configuration

Core and facing

Confirm the core type and surface finish required for the wall or roof.

Panel dimensions

Share the required thickness, width, and panel lengths.

Technical documentation

Request supporting technical documents for the selected panel.

Delivery & installation

Transport

Confirm the destination, site access, and unloading arrangements with your inquiry.

Site preparation

Confirm site conditions and installation responsibilities for your selected configuration.

Related models

Project inquiry

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Share the intended use, destination, and configuration you have in mind.

Model: PU Sandwich Panel

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