Products Description
Element PU Insulated Panels are premium sandwich panels designed for cold storage, factory buildings and workshop enclosures. Available thickness options range from 40mm to 250mm. 100mm PU insulated panels are widely adopted for cold room construction, while thinner 50mm panels are commonly used for building exterior walls.
The effective width covers 400–1120mm, and lengths can be fully customized, with a maximum length of 11.85m to fit 40HQ container shipping.
Our PU insulated panels feature low thermal conductivity and outstanding thermal insulation performance, effectively reducing heat transfer and maintaining stable indoor temperature.
With a PU core density of 42kg/m³(±2) and U-value ≤0.024 w/mk, they achieve Class B1 fire resistance. The PPGI metal skin ranges from 0.4–0.7mm, available in flat, embossed, V8 and micro ripple textures, with custom RAL color options.
Product Specification

|
Products Title |
PU insulated panels |
|
PPGI Thickness |
0.4-0.7mm for choose |
|
Panel Thickness |
40/50/75/100/120/150/200mm |
|
Color |
any other required on RAL Color |
|
PU Density |
42kg/m³(±2) |
|
Effective Width |
400-1120mm for wall panel |
|
Length |
Max 11.85mm for 40HQ container or customized |
|
U Value(w/mk) |
PU:≤0.024 |
|
Fire Rating |
PU:CLASS B1 |
|
Surface Texture |
Flat/Embossed Pattern/V8/Micro Ripple |
|
Application |
Factory panel/cold storage/workshop |
Factory Workshop
How we Produced

Coated Steel Uncoiling
Our production starts with accurate uncoiling of pre-coated steel coils. This first production step requires careful handling to protect the intact coated steel surface. It creates a defect-free base for all subsequent manufacturing procedures.

Electrostatic Film Laminating
The uncoiled steel sheet goes through electrostatic film lamination. Using advanced electrostatic adsorption technology, we attach protective film firmly onto the steel surface. This treatment improves corrosion resistance and keeps a neat appearance, while protecting the steel substrate during later processing.

Forming of Coated Steel Sheet
The film-covered steel is fed into high-precision roll forming machines. With controlled roll forming, flat steel sheets are precisely shaped into panel profiles that match custom garage door specifications.

Double Track Foam Composite
Shaped panels move to the foam injection station. Polyurethane foam is pressure-injected into the double-track panel structure. It forms a continuous solid core that greatly boosts thermal insulation and sound insulation performance.

Precise Machine Cutting
The finished composite panels are processed by CNC cutting. This automated cutting method trims every panel to precise dimensions. It guarantees consistent panel sizes and perfect fitting during garage door assembly.

Pakcage of pu sandwich panel
Pack the boards according to the customer's cut dimensions and label them to ensure they are not damaged during loading and unloading.
our casey
Build the pu sandwich panel wiht element
PU sandwich Panel
A large manufacturing facility in Australia adopted 75mm polyurethane (PU) sandwich panels for external wall cladding. Featuring concealed interlocking joints, the panels deliver a seamless silver-grey metallic façade. This design effectively stops rainwater penetration and eliminates thermal bridging.
Compared with conventional brick construction, these prefabricated panels cut the overall construction timeline by 40%. The high-density PU core maintains reliable thermal insulation, lowering the factory's annual air conditioning energy consumption by almost 30%.

food cold chain warehouse
A professional cold chain warehouse in the United States adopted 100mm polyurethane (PU) insulated panels to build independent cold storage partition compartments. Featuring a hidden concealed seam structure, these PU sandwich panels deliver superior airtightness, effectively stopping cold air leakage and maintaining independent temperature environments for separate storage zones.

The Panels for Cold Room inevitably requires various edging accessories.
We offer free on-site surveying and drawing services to accurately measure the dimensions of your required wall panels and ceiling panels, and calculate all the auxiliary materials needed during installation.
You only need to provide one drawing, and we will provide all the necessary installation accessories.

our services
Choose the best panel that suits your building best
Color Support Customize
We support RAL color chart customization.
Free drawing survey
our 12 person technical team will calculate the panel quantity and provide a construction plan.
Product after-sales service
We offer a 5-year product after-sales guarantee. If any product quality issues prevent project delivery, we will assume full responsibility.
Quality products
All products undergo sampling inspection by specialized technicians before leaving the factory, and the entire loading process is recorded with photos to ensure safe delivery of goods.
Fast delivery
Once the board dimensions are confirmed and we receive the deposit, we guarantee delivery within 15-20 days.
Free Samples
Free samples will be mailed to you. Please contact our sales staff for project inquiries.
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

FAQ
1. What are the advantages of PU insulated panels?
PU insulated panels deliver outstanding thermal insulation and energy efficiency to maintain stable indoor temperatures. They are lightweight, quick and easy to install, and feature reliable fire resistance and sound insulation performance.
2. What are PU insulated panels?
PU insulated panels, also known as PU sandwich panels, are composite building materials made of two metal sheet faces with a rigid polyurethane foam core. With superior thermal insulation capacity, they are widely used for building walls, roofs and cold storage partitions.
3. Are PU insulated panels fire-resistant?
Yes. Our PU insulated panels achieve Class B1 fire retardant rating. Fire-retardant raw materials are adopted to improve fire safety for cold storage, workshop and industrial building projects.
4. Are PU insulated panels eco-friendly?
Yes. Excellent thermal performance cuts energy consumption and greenhouse gas emissions for buildings, supporting low-carbon and sustainable construction.
5. Can PU insulated panels be customized in size and thickness?
Absolutely. We provide full customization on panel thickness, dimension, metal sheet thickness, surface textures and RAL colors to match your specific project requirements.
6. What is your lead time and payment term?
Payment term: 30% TT advance deposit, 70% balance before shipment.
Lead time: 15–20 working days after receiving your deposit.
