Why Choose Pupanel EPS Sandwich Panels
- The EPS sandwich panels produced are widely used in industrial plants, warehouses, cold storage facilities, and commercial buildings.
- We adopt the imported Italian production line and combine it with a refined lamination process to deliver consistent, high-quality board.
- Our technical team can deliver professional support during the selection, structural configuration, and installation stages for you.
- Pupanel can quickly arrange production and shipment for standard-sized sheets and support flexible minimum order quantities.
Reliable EPS Sandwich Panels for Your Projects
If you are in search of EPS Sandwich Panels with stable performance, controllable costs, and reliable delivery for industrial buildings, warehouses, or commercial projects, Pupanel can be your long-term manufacturing partner.
From standardized production to project customization, from technical support to reliable supply, we are committed to delivering practical EPS Sandwich Panel solutions for your projects.
EPS Sandwich Panels Types
The surface layer is made of an antibacterial painted steel plate, which has a smooth and flat surface and is not prone to dust accumulation. And its joint structure is a seamless connection design combining with sealing rubber strips. This can effectively reduce the risk of dust accumulation and bacterial growth in the gaps.
Its core material is treated with anti-mildew agents and undergoes synchronous moisture-proofing on the surface, and a vapor-barrier structure can be embedded to effectively block the path of water vapor penetration. This structure could reduce your risk of board mold growth and core material moisture failure.
The explosion-proof EPS sandwich panels’ surface layer adopts a thickened steel plate structure, and the core material is flame-retardant EPS. In the event of an abnormal impact or explosion, it can, to some exten,t delay the spread of shock waves, reduce the range of structural damage, and thereby minimize accident losses.
Feature of EPS Sandwich Panels
EPS sandwich panels can significantly reduce your overall construction costs by 10%-15%.
The panels’ weight is approximately 30 – 50 kg per square meter, much lower than that of traditional brick walls.
In practical applications, using EPS sandwich panels reduces air-conditioning energy consumption by 30%-50% in summer and heating costs by 20%-40% in winter.
They only need to be fixed to the steel structure with bolts without the need for wet operations, and construction efficiency is 5-8 times higher than that of traditional brick walls.
The sandwich structure provides some isolation from equipment noise and external environmental noise.
The flame-retardant EPS core material can reach the B1 level of non-flammable standard, and some schemes can be customized to A-level flame retardancy.
Whether it is a wall, roof, or partition system, you can customize it flexibly according to the building structure, insulation requirements, and construction conditions.
The materials used in EPS Sandwich Panels can be 100% recycle,d which has a small impact on the environment.
Stable Product Quality
We use an advanced continuous-core board production line to produce EPS sandwich panels. The entire production process is controlled by a computer system, including gluing, compounding, and fixed-length cutting. The dimensional tolerance can be controlled within ±1 mm. Before each batch of products leaves the factory, a quality inspection is conducted, and test reports are available upon request. This makes you more convenient to use for project acceptance, tender documents, and third-party reviews, thereby reducing communication costs in the later stages.
Full-process Technical Support
Our experienced technical team can provide recommendations on board types, thicknesses, and coatings based on your project drawings, operating environment, and industry standards. This helps you avoid selection errors during the design stage. At the same time, we offer detailed installation instructions and support technicians for on-site or remote guidance to ensure construction efficiency and installation quality, and reduce rework and structural risks caused by improper installation.
Applications of EPS Sandwich Panels
In practical applications, it can effectively reduce about 40% of the refrigeration energy consumption and meet food-grade GMP requirements. It is widely used in cold storage, quick-freezing storage, and cold chain processing workshops.
Due to its controllable cost and short construction period, EPS sandwich panels are often used in the wall and roof systems of industrial buildings. For projects that pursue rapid delivery and overall cost control, this could provide a good balance between structural performance and economy.
The surface is flat and easy to clean, making it suitable for production environments with hygiene requirements. They are commonly used in food and pharmaceutical assembly workshops to meet basic GMP cleanliness standards and facilitate daily maintenance.
Its excellent thermal insulation and heat preservation properties help maintain a stable indoor environmental temperature. Livestock farming and agricultural cultivation companies use EPS sandwich panels to improve livestock survival rates and crop growth stability.
- Our Factory
- Project Case
EPS sandwich panels adopt a three-layer composite structure. Ordinary EPS panels are typically used as a single insulation material.
This sandwich structure significantly enhances the structural stability, bending resistance, and overall durability of the panels. At the same time, it is more suitable for direct installation as a wall or roof enclosure system while maintaining good insulation performance.
Compared with PU/PIR sandwich panels, EPS sandwich panels offer greater cost and construction economy advantages.
To meet the project’s fire protection grade requirements, EPS sandwich panels are often used in cost-sensitive industrial buildings that still require reliable insulation and structural performance.
When using suitable flame-retardant EPS core material and adopting continuous composite technology, EPS sandwich panels will not experience rapid aging or flaking in normal operating environments.
For low-temperature or clean environments, it is common to use thicker board types, sealed tongue-and-groove designs, and moisture-proof structures, which can improve insulation stability and reduce cold bridge and condensation risks.
EPS sandwich panels are installed using a modular assembly process. They are typically secured to steel or concrete structures using self-tapping screws or specialized connecting components.
What Is An EPS Sandwich Panel?
The EPS sandwich panel is a lightweight and cost-effective building enclosure material. It is formed by dedicated continuous-composite equipment, in which two layers of metal or inorganic facing materials are combined with an expanded polystyrene (EPS) foam core and then pressed and molded.
This structure provides reliable structural integrity, excellent insulation and soundproofing, and significantly improves on-site installation efficiency.
For projects focused on cost control, construction duration, and energy savings, EPS sandwich panels are a mature, reliable solution backed by extensive engineering practice.
Composition of EPS Sandwich Panels
Face Layer Material
The face layer determines your structural strength, durability, and appearance of the sandwich panel.
Coated steel sheet: The coated steel sheet’s thickness is usually 0.3–0.8 mm, and it is the most commonly used and cost-effective face layer material. This balances strength, cost, and construction convenience. You can significantly enhance the overall appearance of the factory or building by customizing colors, coating types, and panel shapes without increasing costs.
Aluminum sheet: The aluminum sheet is lightweight, resistant to oxidation, and has a weight of only one-third that of steel plates. It is more suitable for coastal areas or high-humidity, high-corrosion environments, reducing structural loads while enhancing long-term weather resistance.
Stainless steel sheet: Common thickness is 0.3–0.6 mm, with excellent corrosion resistance and easy cleaning. It has high structural strength. So it is mostly used in places with high cleanliness or chemical corrosion requirements, such as food processing workshops,
pharmaceutical purification workshops and clean buildings.
Cement-based panels / fiber cement panels: They can provide higher durability and fire resistance, and are often used for buildings with high fire protection requirements.
Core Material
EPS core material is made by foaming, curing, and shaping of polystyrene particles, and is a lightweight, closed-cell insulation material. The common density range is 18–25 kg/m³.
It is worth noting that the higher the core material density, the better the insulation performance and compressive strength. In addition, it is recommended that you select flame-retardant EPS (flame retardancy index ≥ 30) in engineering applications to meet building fire safety and safety regulations.
Bonding Layer
The face layer and EPS core material are bonded together by polyurethane glue or modified phenolic glue. The glue’s applicable temperature range is -50℃ to 120℃, and its bond strength exceeds 0.1 MPa. The stable bonding layer can effectively prevent the panels from layering, cracking, or delamination during your long time use.
Surface Treatment
Common coatings include polyester, PVDF, and plastisol, which can deliver you additional protection against UV rays, chemical corrosion, and weathering.
You can comprehensively select the specific surface layer materials and coating schemes based on the project environment, usage period requirement,s and appearance preferences.
How to Choose EPS Sandwich Panels
Flame-retardant EPS Core Materials
In actual projects, it is recommended to select EPS Sandwich Panels with a B1 or higher flame-retardant rating, and to require the supplier to provide a complete third-party test report.
Suitable Surface Layer Materials
The quality of the surface-layer steel plate largely determines the service life of the actual EPS sandwich panels. Please pay close attention to the thickness of the galvanized layer and the adhesion of the surface coating to avoid premature rusting, peeling, or paint loss in humid or industrial environments.
For example, for coastal or highly corrosive environments, it is recommended to use aluminum-zinc-plated or stainless steel surface layers. If your project is a purification workshop or clean room, the specialized EPS sandwich panels for purification have a good balance between cost control and clean performance. Its antibacterial surface layer and flat, seamless structural design are more conducive to daily cleaning and long-term use.
The Adhesive’s Bonding Performance
The quality of the adhesive is often overlooked, but it is particularly crucial in low-temperature or temperature-difference environments.
If your project involves cold storage, cold chain workshops, or winter construction, it is necessary to choose low-temperature-resistant adhesives to prevent board delamination due to adhesive detachment later, which will increase your maintenance costs.
