Products Description
Cool Room Sandwich Panels produced and developed by Element Group is a composite panel designed for low-temperature environments. It is usually used in cold chain logistics, food processing and pharmaceutical storage.
Cool Room Sandwich Panels usually use color steel plates and stainless steel plates or aluminum plates as the outer layer material, and use PU core material with excellent thermal insulation performance.
High-pressure foaming technology is used to bond the core material to the panel to ensure seamlessness, high bonding strength, and avoid cold bridge effect.
Special sealing strips are used at the joints of the panels to prevent cold air leakage and external moisture intrusion. This type of panel is easy to install, fast to construct, and has good results. It is very popular in the cold chain industry.
Products Description
| Material | Thickness | Coating | Features |
|---|---|---|---|
| Galvanized Steel (PPGI) | 0.4mm – 0.8mm | PE/PVDF coating | Anti-corrosion, color options (RAL codes) |
| Stainless Steel | 0.5mm – 1.0mm | Brushed/matte finish | High durability, hygienic |
| Aluminum | 0.5mm – 1.2mm | Anodized/painted | Lightweight, rust-proof |
Factory Workshop

Metal panel pretreatment
Unwinding: Automatic unwinding of galvanized steel sheet/stainless steel coil
Surface cleaning: Remove oil and impurities (electrostatic dust removal + chemical cleaning)
Laminating/coating: Pre-coating anti-corrosion layer (PE/PVDF) or embossing
Panel shaping and preheating
Use roller forming machine to press the panel into a locking structure (such as male and female grooves, hidden hooks)
Preheat to 40-60℃ (to improve foaming bonding strength)
Polyurethane foam injection
High-pressure foaming machine will isocyanate (ISO) and polyether polyol ( POLY) mixed in proportion
Injected between two layers of metal panels, the reaction expands to fill the cavity (foaming temperature 20-25℃)
Continuous lamination molding
Enter the double-track laminator and mature at 60-80℃ (speed 1.5-4m/min)
Pressure control: 0.2-0.4MPa to ensure uniform core material density (standard 38-45kg/m³)
Fixed-length cutting and trimming
Infrared positioning automatic cutting (accuracy ±1mm)
The milling machine processes the board seam interface to ensure installation sealing
Products Case
Success Case
FAQ
Everything You Need to Know
'lt is awesome to work with Element. amazingy organized,easy to communicate with. responsive with next iterations,and beautiful work.
What temperature range do cold storage Puf panel support?
A: Our panels maintain stable performance from -40°C to +50°C. For deep freeze applications below -25°C, we recommend 150mm or thicker panels.
What's the cool room sandwich panels thicknesses are available?
Standard thicknesses: 50mm, 75mm, 100mm, 120mm, 150mm, 200mm.
50-100mm: Medium-temperature cold rooms (0°C to -10°C).
150-200mm: Freezers (-18°C to -30°C).
Do you provide installation services?
A: We offer both technical guidance and professional installation teams globally. Most projects use our certified installers.
What is the delivery time and payment method of Polyurethane Foam Insulation Sheets?
Deliver time always 15-20 days, and advance payment TT 30% ,balance payment TT 70% before delivery.
Here are the reasons why our cold storage roof panels are the best choice for your project:
✔ High Strength – Reinforced steel frame for heavy-duty applications.
✔ Superior Insulation – Minimal thermal loss with airtight cam-lock joints.
✔ Corrosion-Resistant – PVDF-coated or SS304 options for harsh environments.
✔ Fast Installation – Modular design allows 200+ m²/day assembly speed.
Our address
Zhengzhou City Henan Province China
Phone Number
+18697320091
emily@etpanel.com


