Why Choose Our 30mm Sandwich Panel?
- We have the corresponding molds and production parameters, with high consistency in thickness, density, and plate shape.
- Supports multi-core material selection of PU/EPS/rock wool to meet requirements for cost and performance in different application scenarios.
- In light of the characteristics of 30mm thin plates, we optimize the thickness of the steel plate and the density of the core material.
- The regular 30mm specification can be quickly scheduled for production and is suitable for your bulk purchasing projects.
- We can provide technical parameter tables, selection suggestions, and application instructions based on your project requirements.
Pupanel — Your Reliable 30mm Sandwich Panel Supplier
As a professional supplier of 30mm sandwich panels, Pupanel ensures the insulation efficiency and structural strength of the sandwich panels through high-performance core materials and precise panel design, while achieving rapid delivery and stable quality control.
We have provided numerous mature applications for industries such as manufacturing, commerce, and cold storage, ensuring that every sheet you receive is both economical and of reliable quality.
Our 30mm Sandwich Panel

The 30mm polyurethane sandwich panel uses PU as the core material, which endows it with excellent thermal insulation performance. At the same time, it takes into account lightweight, strength and heat insulation, which is widely used in light industrial buildings.

The 30mm rock wool sandwich panel uses A-grade non-combustible rock wool as the core material, which is suitable for construction projects with clear requirements for fire protection grades. However, its insulation performance is relatively limited at a thickness of 30mm.

The 30mm polystyrene sandwich panel uses EPS foam as the core material. It is lightweight and cost-effective, making it the most cost-effective 30mm sandwich panel solution. It is suitable for temporary buildings, budget-sensitive projects, and environments with low insulation requirements.
Features of 30mm Sandwich Panel

The 30mm thick sandwich panel uses less material and is lightweight, making it suitable for light building projects that are sensitive to structural loads and costs.

When combined with insulation core materials, it provides basic heat insulation, making it suitable for use in environments with low temperature-control requirements.

The 30mm sandwich panel is lightweight and easy to handle, which can effectively improve installation efficiency and shorten your overall construction period.

Compared with 50mm and 100mm sandwich panels, 30mm sandwich panels are lower-cost and better suited to controlling your total project budget.
Structural Optimization Design for 30mm Thin Panels
We have optimized the thickness-to-density ratio of the 30mm thin sandwich panel, ensuring lightweight while enhancing overall flatness and composite strength, thereby reducing common risks of bulging and delamination in thin plates.


Stable Heat Preservation Performance
Although the 30mm sandwich panel is relatively thin, through the stable control of the density of PU, EPS or rock wool core materials, our 30mm sandwich panel can provide you with reliable basic insulation performance in lightweight building applications.
Product Batch Consistency Guarantee
Our 30mm sandwich panels feature mature and stable production parameters and standardized processes, which ensure that their thickness, core material distribution and surface quality remain consistent across different batches, reducing potential issues that may arise during on-site installation and splicing.

Applications of 30mm Sandwich Panel

30mm sandwich panels can be used for the wall enclosure structure of light industrial plants. It meets basic protection and heat insulation requirements and is suitable for projects with low insulation requirements.

30mm sandwich panels are generally not used as the main enclosure material for cold storage. They are only suitable for local partitions in cold storage and are not suitable for refrigeration environments with strict temperature requirements.

Our 30mm sandwich panels have a smooth, easy-to-clean surface. In clean workshops, it can be used for internal partition walls and auxiliary areas, but is generally not used in core production areas that require strict temperature control and sealing.

30mm sandwich panels are widely used in temporary construction sites, temporary offices, dormitories, and other temporary buildings due to their light weight, quick installation and low cost.

Our 30mm sandwich panels are suitable for use as interior partitioning materials in buildings. It can achieve rapid space division while maintaining certain heat insulation and sound insulation effects.
- Our Factory
- Project Case
Our 30mm sandwich panel can only provide basic insulation performance. When using a PU core material, the insulation performance is better. However, it is not suitable for cold storage walls or buildings with stringent temperature-control requirements.
The fire resistance performance of 30mm sandwich panels primarily depends on the core material type. Among them, rock wool core materials can reach A-level non-combustibility, while PU and EPS core materials are usually B-level fireproof.
Under normal use and reasonable installation conditions, the service life of 30mm sandwich panels is typically 15 years. However, its service life depends on the environment and the panel material.
We generally do not recommend using 30mm sandwich panels for roofing. They are more suitable for light-load, small-span, or temporary roof structures.
If your construction project emphasizes cost and lightweighting, you can choose 30mm sandwich panels. If you need better insulation and structural performance, 50mm sandwich panels are a better fit.
The price of 30mm sandwich panels is mainly influenced by factors such as the type of core material, the thickness of the panels, the surface material, and the mode of transportation.
What is a 30mm Sandwich Panel?
The 30mm sandwich panel, as the name suggests, is a sandwich panel with a thickness of 30mm. It is typically composed of two layers of metal or non-metal panels and a core material, all bonded with high-strength adhesives.
Its core features are lightweight, high strength, heat insulation ,and quick installation, which are widely used in the exterior walls, roofs and partitions of industrial plants, cold storage rooms, clean workshops, and other buildings. Of course, its specific performance and application depend on the selection of core materials.
The Structure and Main Materials of 30mm Sandwich Panels

Upper and Lower Panels
- Color-Coated Steel Plate: The most commonly used panel material for 30mm sandwich panels. By applying a colored coating on the surface of the galvanized base plate, the panel has both excellent corrosion resistance and decorative properties.
- Aluminum-Zinc Coated Steel Plate: It adopts an aluminum-zinc alloy coating, and its corrosion resistance is superior to that of ordinary galvanized steel plates. It is especially suitable for 30mm sandwich panels used in coastal, high-humidity, or high-temperature environments.
- Stainless Steel Plate: Stainless steel panels have excellent corrosion resistance and a long service life, but they are relatively expensive, and are usually used in projects with high requirements for hygiene and durability.
Internal Core Materials
- Polyurethane (PU): The PU core material features an extremely low thermal conductivity and excellent structural strength, providing you with good insulation performance even at a thickness of 30mm.
- Polystyrene Foam (EPS): The EPS core material is lightweight and low-cost, making it the most cost-effective choice among 30mm sandwich panels.
- Rock Wool: Rock wool core is an A-level non-combustible material with excellent fire-resistance performance. It is primarily used in 30mm sandwich panels for projects with clear requirements for fire-resistance grades. However, its thermal insulation performance is limited at thin thicknesses.
A Comparison of 30mm Sandwich Panels with Different Core Materials
| Polyurethane (PU) | Rock wool | Polystyrene (EPS) | |
| Thermal Insulation | Optimal | Good | Average |
| Fire Resistance | Class B1 (Flame Retardant) | Class A (Non-combustible) | Class B2 (Combustible) |
| Weight | Light | Heavier | Lightest |
| Price | Relatively high | High | Low |
| Main Uses | Cold storage, insulated workshop | Buildings with high fire safety requirements | Temporary structures or partitions |
30mm Sandwich Panel VS 50mm Sandwich Panel VS 100mm Sandwich Panel
- 30mm Sandwich Panel: Its core advantages are lightweight and low cost, making it suitable for buildings with low heat insulation and load-bearing capacity requirements. It can effectively reduce your overall construction costs, but it is not suitable for cold storage or scenarios with high insulation requirements.
- 50mm Sandwich Panel: It strikes a good balance among thermal insulation performance, structural strength, and cost, which is the most widely used thickness specification in industrial plants, warehouses and other buildings. It has a wide range of applications and a high level of construction maturity.
- 100mm Sandwich Panel: It is mainly used in projects such as cold storage and cold chain logistics that have extremely high requirements for insulation performance. It has excellent heat insulation capacity and overall strength, but its cost, weigh,t and installation requirements are relatively high.
| 30mm Sandwich Panel | 50mm Sandwich Panel | 100mm Sandwich Panel | |
| Thermal Insulation and Heat Preservation | Average | Good | Outstanding |
| Structural Strength | Basic strength | Relatively high strength | High strength and high rigidity |
| Sound Insulation | Average | Good | Outstanding |
| Self-Weight | Lightest | Medium | Heaviest |
| Cost | Lowest | Medium | Highest |
| Common Applications | Temporary building | Standard factory building | Cold storage |































