Shenyang Qiangyun Color Steel & Steel Structure Co., Ltd. is one of the most reliable manufacturers and suppliers of composite foam sandwich panels wall in China. With abundant experience, we are committed to providing high quality customized products with competitive price. Welcome to wholesale advanced composite foam sandwich panels wall in stock here from our factory. Also, pricelist is available.

Product Introduction

Our composite foam sandwich wall panel is a factory-produced prefabricated enclosure panel made from color-coated steel sheets and a closed-cell, flame-retardant EPS core. The panel uses a tongue-and-groove modular joint and can be supplied in multiple thicknesses, steel grades, colors and lengths. It is intended for projects that need lightweight enclosure, thermal insulation and fast installation.

Is This Panel Suitable for Your Project?

Project / Application	Initial Suitability	Remarks
General Warehouse & Workshop	Suitable	Select proper panel thickness based on project thermal insulation needs.
Prefabricated & Modular Building	Suitable	Ideal lightweight enclosure solution for modular construction.
Temporary Commercial Building	Suitable	Comply with local building codes and project service life requirements.
Hot Climate Projects	Suitable with specification review	Confirm insulation target, anti-UV coating system and outdoor exposure conditions.
High Fire-Rating Projects	Requires project verification	Follow official fire test classification; switch to alternative core materials if higher fire resistance is needed.
Cold Storage & Low-Temp Rooms	Project-specific evaluation	Verify operating temperature and insulation performance before final specification.

Key Product Specifications

Parameter	Current Specification
Panel width	950 mm / 1150 mm
Panel thickness	50 / 75 / 100 / 120 / 150 mm
Panel length	1 m – 20 m
Steel skin thickness	0.3 – 0.8 mm
Facing material	PPGI / GI / PPGL color-coated steel sheet
Core material	Flame-retardant expanded polystyrene (EPS)
EPS density	12 – 20 kg/m³
Working temperature	-40°C to +70°C
Steel color	Full RAL color chart
Edge treatment	Standard / reinforced edge
Accessories	Fasteners, sealing strips, flashing
Sample packing	Bubble bag + hard carton
Bulk packing	Waterproof PE film + fumigated wooden pallet + edge protector

How to Choose the Panel?

Panel thickness should be selected from the project's thermal, structural, fire and local-code requirements. The ranges below are a preliminary selection guide; final specification should be confirmed from project drawings and applicable building requirements.

Project Need	Thickness	What to Confirm
Basic enclosure / temporary building	50 mm	Local thermal and fire requirements.
General warehouse / workshop	50–75 mm	Climate, indoor temperature target and local code.
Higher thermal insulation	75–100 mm	Required U-value / R-value and energy target.
Hot climate / stronger insulation target	100–150 mm	Calculated thermal performance and coating exposure.
Higher fire requirement	Project-specific	Exact tested classification; alternative core if required.

Performance

The EPS core delivers excellent properties: flame retardant, low water absorption, compressive stability and consistent thermal insulation performance.

Performance Item	What the Buyer Should Request
Fire performance	Confirm exact classification under applicable standards, test specimen information and complete test reports.
Thermal performance	Check thermal conductivity (λ), as well as calculated U-value / R-value where available.
Water performance	Check thermal conductivity (λ), as well as calculated U-value / R-value where available.
Wind / structural performance	Obtain allowable span and load data, or project-specific engineering calculations upon request.
Acoustic performance	Supply sound reduction test data in dB for projects requiring sound insulation.
Corrosion / durability	Verify steel substrate, coating system, coating thickness and relevant warranty terms.

Middle East Project Considerations

For Middle East projects, panel specifications must consider high ambient temperatures, intense UV radiation, corrosive conditions and project-specific fire ratings.Panels are customized according to actual site conditions and building application.

Project Condition	Specification Points
High ambient temperature	Panel thickness & verified thermal performance
Strong UV exposure	Steel coating system & color selection
Coastal / saline environment	Steel substrate & anti-corrosion specification
Warehouse / workshop	Thermal targets, fire requirements & panel thickness
High fire requirement	Valid fire test classification; alternative core material upon request

Manufacturing & Quality Evidence

Our panels are manufactured on automated lines with strict QC. Verified factory evidence backs our credibility: production lines, material & dimension inspection records, batch QC documents, certificates, test reports and overseas project references for your review.

Packaging & Delivery Preparation

The current packaging specification uses bubble bags and hard cartons for samples, and waterproof PE film, fumigated wooden pallets and edge protection for bulk shipments. The following information will be confirmed in advance to get the accurate cost.

Quotation Item	Details
MOQ	1m², but the 20GP option offers more competitive pricelist with shipping fee by sea.
Container loading	Reference Loading Capacity - 50 mm EPS panel: 550 – 590 m² /20GP; 1280 – 1330 m² /40HQ - 75 mm EPS panel: 370 – 410 m² /20GP; 860 – 920 m² /40HQ - 100 mm EPS panel: 280 – 310 m² /20GP; 640 – 690 m² /40HQ Roof panels, extra-long panels and accessories will reduce loading volume. Final loading layout and exact quantity will be offered once your detailed specifications are confirmed.
Lead time	After confirmed the deposit, Standard panels can be shipped within 10-15 days. Customization will be within 25 days.
Delivery	Port of loading is Dalian,also need the destination port to confirm the shipping time.
Documents	Packing list, Commercial Invoice, CO,CE,certificates / test reports as applicable

FAQ

Q: What information do you need for a quotation?

A: Project location, panel thickness, total quantity, panel length, steel skin thickness, coating requirement, color, accessories and delivery port.

Q: How do I choose 50, 75, 100, 120 or 150 mm?

A: Start with the project's required thermal performance and local building code. Thicker panels generally provide more insulation, but the final choice should be based on verified thermal data and project calculations.

Q: Can you provide test reports?

A: The source states that the product is positioned around flame-retardant performance and international standards. The final commercial package should provide the applicable report for the exact product configuration where available.

Q: Can the panel be customized?

A: Yes. The source lists customization of color, steel material, dimensions, core option and edge treatment, plus fasteners, sealing strips and flashing.

Q: Is this panel suitable for cold storage?

A: Do not assume suitability from the EPS panel specification alone. Confirm required temperature, insulation target, vapor control, joint design and local code before selection.

Request a Quote

Send the following information for a project-specific quotation:

Project location
Application / building type
Required panel thickness
Estimated quantity (m²)
Panel length
Steel skin thickness and coating requirement
Color / RAL number
Required accessories
Delivery port
Required fire / thermal / acoustic standards, if applicable

We can then prepare the applicable technical specification, packing proposal, loading plan, lead-time information and commercial quotation based on the confirmed project requirements.