Why Choose Our XPS Sandwich Panel
- We have our own XPS core material production line to control quality from the source.
- Support the customization of non-standard sizes and irregular-shaped plates to meet the needs of personalized projects.
- Provide load calculation support to ensure structural safety and compliance.
- Provide a complete set of installation accessories and guidance videos to lower the construction threshold.
- Our products have obtained international certifications, including ISO 9001 and CE, and meet the standards of major markets.
Pupanel — Your Reliable XPS Sandwich Panel Supplier
As a professional supplier of XPS sandwich panels, Pupanel has its own XPS core material production line to ensure that your panels have uniform density and meet fire resistance standards.
With flexible customization capabilities, we can meet your project requirements, including -40℃ cold storage and clean workshops. We offer end-to-end technical support, and our products have passed international certifications and are successfully used in over 50 countries worldwide.
Classified by Panel Material

This type of XPS sandwich panel is the most common and economical. Its base material is galvanized or aluminized zinc steel plate, and the surface is coated with polyester or PVDF fluorocarbon baking paint.

It is often used in high-hygiene standards or highly corrosive environments, such as food and medicine (e.g., coastal areas), and its cost is relatively high.

This type of XPS sandwich panel is lightweight, corrosion-resistant,t and aesthetically pleasing, which is often used in cold storage facilities and high-end commercial buildings.

There are also gypsum boards, cement fiberboards, and other materials used for special fire protection or interior decoration requirements.
Features of XPS Sandwich Panels

The core material, extruded polystyrene (XPS) of XPS sandwich panels, has an extremely low thermal conductivity, which can effectively prevent heat transfer.

The composite structure endows the panels with high bending and compressive load-bearing capacity, ensuring the overall stability and durability of your building.

The closed-cell rate of the core material of XPS sandwich panels is close to 100%, making it almost non-absorbent of water even in a long-term damp environment.

The overall weight of XPS sandwich panels is low, which can significantly reduce your building’s load and costs and ensure energy-efficient operation.
Outstanding Heat Preservation and Moisture-Proof Performance
Our XPS core material has a thermal conductivity as low as 0.026W/(m·K), and its closed-cell structure ensures a water absorption rate of less than 1%. Even in low-temperature, high-humidity environments (-30℃), its insulation performance remains stable over time and can reduce cold storage energy consumption by more than 30%.


High Strength and Stable Structure
The compressive strength of our XPS sandwich panels can reach up to 300kPa, and when installed vertically, their load-bearing capacity exceeds 5kN/m². By adopting high-molecular continuous-bonding technology, the panel is securely bonded to the core material, ensuring it does not deform over time in strong wind and vibration environments.
Quick Installation and Supporting Systems
We offer complete installation system solutions, including dedicated connectors and sealing materials. Our standardized XPS sandwich panel design significantly enhances installation efficiency and provides high water-tightness at the joints. The entire solution has passed CE certification.

Applications of XPS Sandwich Panel

Because of the waterproof and heat-insulating properties of XPS sandwich panels, they are widely used for factory walls and roofs, clean workshops, and logistics warehouses.

XPS sandwich panels are most commonly used for the walls, roofs, and door bodies of cold storage facilities, underscoring their performance advantages.

Our XPS sandwich panels are often used in the enclosure structures of large shopping malls, supermarkets, exhibition halls,s and stadiums.

Facilities such as livestock and poultry farms and greenhouses often use the thermal insulation and moisture-proof properties of XPS sandwich panels.

XPS sandwich panels are also commonly used in the construction of construction site offices, prefabricated houses, and purification panel houses.

XPS sandwich panels can be used for interior partition walls that require thermal insulation and soundproofing.
- Our Factory
- Project Case
The core material of ordinary XPS is flammable. However, we can provide B1-grade XPS sandwich panels with high-efficiency flame retardants, which effectively meet the fire protection code requirements for most industrial and commercial buildings.
The key difference lies in the materials used. XPS core material has a continuous and uniform closed-cell structure, so its thermal insulation, moisture resistance, and strength are significantly better than those of EPS core material. XPS is a superior choice, especially suitable for cold storage and high-humidity environments.
The XPS core material itself has high compressive strength, and the composite board has strong load-bearing capacity. We can customize roof or floor panels with different thicknesses, strengths, and plate types to meet your load requirements and ensure structural safety.
Under normal usage conditions, the service life of our XPS sandwich panel system can reach about 20 years. Its metal panel offers strong weather resistance, and the core material is not prone to corrosion or mold growth, requiring minimal special maintenance.
Sure. As a professional production factory, we can not only provide standard sizes and board types but also customize panels to your project requirements, including special lengths, widths, thicknesses, and materials, offering a one-stop solution.
What is the XPS Sandwich Panel?

XPS sandwich panels are made by bonding extruded polystyrene foam board (XPS) core material between two surface panels. Its core material has a uniform closed-cell structure, thus it possesses excellent thermal insulation, moisture resistance, and compressive strength.
This type of board structure is lightweight and easy to install. It is primarily used in applications requiring exceptionally high thermal insulation and moisture protection, such as cold storage facilities, constant-temperature factories, and the walls and roofs of various industrial and commercial buildings.
The Key Components of the XPS Sandwich Panels
Upper and Lower Panels
- Common Materials: The upper and lower panels typically use color-coated steel plates, stainless steel plates, aluminum plates, and gypsum boards.
- Features: Its surface is typically embossed with concave and convex patterns, enhancing strength and aesthetic appeal. The upper and lower panels provide basic structural strength, an attractive appearance, and protect the internal core material.
Core Materials
- Common Materials: The core material of XPS sandwich panels is extruded polystyrene, which is formed by extruding polystyrene resin and additives to create a uniform closed-cell honeycomb structure inside.
- Features: XPS core material has an extremely low thermal conductivity, high compressive strength, and very low water absorption. It can still maintain excellent insulation performance in a humid environment. In addition, it is lightweight, corrosion-resistant, moisture-proof, and anti-aging.
The Main Advantages of XPS Sandwich Panels
Easy to Install
After the XPS sandwich panels are produced in our factory, your on-site construction mainly involves standardized assembly operations. You only need to connect and fix it through the lock seam. The installation process is simple and fast, significantly shortening your construction period and improving project efficiency.
Beautiful and Durable
The outer metal panel of XPS sandwich panels is usually coated with a highly weather-resistant colored coating, which not only provides you with a rich variety of color options to meet your customized architectural needs, but also can resist the erosion of ultraviolet rays, acid rain, etc., for a long time.
Precautions for Using XPS Sandwich Panels
Confirm the Fire Resistance Rating
You must strictly select XPS sandwich panels with corresponding fire resistance grade certifications in accordance with the building’s purpose and local fire protection regulations, and pay attention to the overall fire resistance performance of the composite of the panel and core material.
Seek Professional Installation
The installation of XPS sandwich panels must be carried out by a professional team to ensure reliable sealing of the panel joints, and dedicated accessories should be used to guarantee the overall air tightness, water tightness, and structural safety of the building envelope system.
Avoid Direct Sunlight and Bumps

During transportation, storage, and installation, avoid accelerated aging of the sandwich panel’s surface coating from prolonged direct sunlight.
At the same time, handle it carefully to prevent the board’s corners and edges from being damaged by bumps or knocks, as this can affect its performance and appearance.
Compatibility Design
In your design, you should take into account the material compatibility of XPS sandwich panels with other building materials to avoid joint cracking or corrosion due to chemical property incompatibility. Meanwhile, the support system should also meet the corresponding anti-corrosion and strength requirements.
Storage and Protection
XPS sandwich panels should be stored on a flat, dry surface to prevent deformation. After installation, you should promptly carry out necessary cleaning and protection of the board surface to prevent it from being contaminated or burned by paint, welding sparks, etc., during subsequent construction.































