Why Choose Pupanel 's Aluminum Sandwich Panels?
- All of our aluminum sandwich panels have obtained international certifications, including ISO 9001, CE, and FM.
- Professional factory with more than 10 years of experience.
- All aluminum sandwich panel production lines are equipped with an advanced core production process and on-site foaming technology.
- Professional and strict quality control team.
Professional Aluminum Sandwich Panels Supplier in China
Pupanel is a professional sandwich panel manufacturer with multiple international certifications, including ISO 9001. We have automatic production lines imported from Italy, OMS, PUMA, and other brands. It covers the entire process of aluminum alloy sandwich panel production, from raw material inspection through production to quality inspection.
Our aluminum alloy sandwich panels are stable in performance and excellent in quality. They are lightweight yet robust, providing reliable support for your projects.
Our Products of Aluminum Sandwich Panels

An aluminum PU sandwich panel is more common. They can effectively insulate and retain heat and are suitable for commercial and industrial buildings that require a fire rating. They can balance performance and cost.

Aluminum rock wool sandwich panels are suitable for projects with a high fire rating. This is because rock wool itself has excellent thermal insulation and fire protection properties.

Aluminum PIR sandwich panels are made of PIR, which has a higher content of isocyanurate rings and therefore has better flame resistance. It is suitable for applications such as public buildings and warehouses that require higher safety standards.

Aluminum EPS (Expanded Polystyrene) sandwich panels combine lightweight with thermal insulation. It is suitable for applications that do not require high fire performance, such as ordinary buildings or warehouses. The price is also very friendly.
Features of Aluminum Sandwich Panel

Aluminum polyurethane or EPS is less labor-intensive to install on walls and roofs, so installation is quick and cost-effective.

The corrosion resistance of aluminum panels is not significantly affected by sunlight or rain, and they are also suitable for coastal environments.

Aluminum is a strong material that does not crack or deform significantly over long periods, providing long-term performance in large-scale applications.

Aluminum polyurethane sandwich panels are recyclable in all their components. This feature reduces material waste compared to other materials and is more environmentally friendly.
Unique Double-Support Plug Design
Our aluminum alloy sandwich panel features an internationally patented double-support plug interface. This design makes the connection between the panels tighter and more solid, resulting in stronger wind resistance.


More Beautiful Surface Effect
Aluminum sandwich panels feature a glossy aluminum shell, are ideal for high-end commercial building exteriors, and are aesthetically pleasing and high-quality.
We also equip the concealed nails. They will not appear on the surface of the panels, enhancing the installation’s aesthetic appeal.
Energy Efficient
Excellent thermal insulation effectively blocks heat transfer, reducing carbon dioxide emissions and lowering your building’s energy consumption.

Applications of Pupanel's Aluminum Sandwich Panels

Pupanel’s aluminum sandwich panels can be used on cold room walls to maintain a cold environment and prevent spoilage of goods.

They can also be used in building walls to provide sound and thermal insulation.

Its lightweight design does not add weight to the roof, and it can withstand natural elements such as rain while retaining heat.

In a clean room, it can be used for multi-functional purposes such as heat preservation, insulation,n and soundproofing.
- Our Factory
- Project Case
The density of an aluminum sandwich panel is usually around 15kg/m³. This shows that it is a relatively lightweight material. Besides, the thickness of aluminum sandwich panels we offer ranges from 50mm to 250mm. You can inform our customer service of the specific use environment, temperature control range, and sound insulation requirements to receive professional advice.
If you need to choose aluminum sandwich panels for cold storage with extremely low temperatures, we also support customization for thicknesses of 250mm and above.
Yes, you can customize the size, color, and thickness of the aluminum sandwich panels for your specific application, and we also offer a wide range of surface treatments, including laminating and painting.
The corrosion resistance of the aluminum alloy sandwich panel primarily derives from the dense oxide film formed on the aluminum surface. It cannot only effectively block the rain and snow, but also will not react in the salt spray environment. This is one reason aluminum alloy sandwich panels are suitable for coastal areas.
The thermal insulation performance of aluminum sandwich panels depends on several factors, including the type and thickness of the core material.
For example, a sandwich panel with a polyurethane core will be more thermally conductive than one with EPS. Similarly, a thicker sandwich panel will provide better insulation.
For most applications, you don’t need to choose aluminum sandwich panels that are too thick. For a typical warehouse, choosing panels over 100mm is a waste of cost and material.
Daily maintenance of aluminum sandwich panels primarily includes cleaning the surface of dirt, inspecting joint seals, and other tasks. You also need to avoid impacts or scratches on the aluminum sandwich panel. With proper maintenance, an aluminum sandwich panel can have a service life of more than 25 years.
What is Aluminum Sandwich Panel?

Sandwich panel refers to the metal plate wrapped foam insulation material structure of the panel. An aluminum alloy sandwich panel is one type of panel made of aluminum, a lightweight material. This characteristic enables it not only to provide basic thermal insulation but also to combine corrosion resistance, heat resistance, and other excellent performance. Provide more durable protection for your project.
Structure Of An Aluminum Sandwich Panel
Typically, an aluminum sandwich panel consists of three components: the aluminum sheet, the sandwich material, and the adhesives.
Aluminum Sheet
Aluminum is the surface material for aluminum sandwich panels, and its advantages include light weight, high strength, and good corrosion resistance. In addition, aluminum is highly ductile. This makes it easy to process to meet the thickness and strength requirements of sandwich panel surfaces.
Sandwich Material
The main function of sandwich materials is thermal and acoustic insulation. When used in walls, they effectively insulate the air on both sides, preventing heat exchange between the cooler interior and the outside world and reducing temperature fluctuations and energy loss. For commercial buildings, they can enhance indoor comfort; for cold storage, they can maintain low temperatures to freeze and preserve freshness.
You can choose from various PU, PIR, EPS, and other core materials based on your budget and needs.
Adhesive
The adhesive’s function is to securely bond the core to the aluminum sandwich panel. Good adhesion affects the overall strength and durability of the sandwich panel. Therefore, aluminum sandwich panels are often bonded by brazing and high-performance structural adhesives to avoid internal delamination or bulging during long-term use.
Aluminum Sandwich Panels vs. Steel Sandwich Panels
Compared with steel, an aluminum sandwich panel offers longer service life and better corrosion resistance. However, for short-term, limited-budget projects, color steel remains a good choice.
| Features\Types | Aluminum Sandwich Panels | Steel Sandwich Panel |
| Corrosion Resistance | Stronger | Easy to rust |
| Weight | More lighter | More weight |
| Life Span | 25-40 years | 10-15 years |
| Applications | Coastal area, chemical construction | Dry and less demanding applications |
Aluminum Sandwich Panels vs. Stainless Steel Sandwich Panel

Compared with stainless steel, aluminum’s advantages lie primarily in its light weight, ductility, and lower cost. Stainless steel sandwich panels are more corrosion-resistant and stronger than aluminum sandwich panels. But they are also more costly to process and are suitable for applications requiring high corrosion resistance, such as food production and medical devices.
| Features\Types | Aluminum Sandwich Panels | Stainless Steel Sandwich Panel |
| Rigidity | Medium and high level | Higher |
| Corrosion resistance | Relies on the natural oxide film | More higher |
| Life span | 25-40 years | 30-50 years |
| Cost | Lower than the stainless steel | Higher |
| Processing difficulty | Easy to process | Harder |
How To Choose Suitable Aluminum Sandwich Panels?
Choose the right thickness based on insulation requirements
Thickness has a significant impact on the insulation performance of aluminum alloy sandwich panels. You can choose the right thickness based on different insulation requirements.
For common building applications, such as warehouses and commercial buildings, it is sufficient to select aluminum alloy sandwich panels with a thickness of 50-100mm. For cold storage and constant-temperature workshops that require higher thermal insulation performance, thicker aluminum alloy sandwich panels better maintain temperature.
Choosing the right core material
Of course, you also need to select the appropriate core material based on your thermal insulation, fire protection, sound insulation, and other requirements.
For example, a core made of polyurethane has significant advantages in terms of insulation and lightweighting, while rock wool will perform better in terms of sound and fire insulation. You’ll need to consider cost, application requirements, and other factors to choose a core that strikes a better balance in these areas.
Choosing a Reliable Aluminum Sandwich Panel Supplier
A reliable supplier of aluminum sandwich panels is essential to securing your project. The manufacturer’s expertise, quality control system, and product certifications are all very important. You need to know this essential information before confirming your order.


































