Competitive Price Lightweight PU PIR Sandwich Panel Wall Insulation for Steel Structure Buildings For Sale

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Product introduction

PU sandwich panel

PU (Polyurethane) and PIR (Polyisocyanurate) sandwich panels are both composite building materials used for insulation and structural support. They consist of a foam core sandwiched between two layers of a different material, typically metal. The core provides insulation, while the outer layers offer protection and structural integrity. PIR panels are often preferred over PU panels due to their superior fire resistance and thermal properties.

Product advantages

	Excellent Thermal Insulation Performance	Featuring ultra-low thermal conductivity (0.019-0.022 W/m·K), our high-pressure foamed insulation delivers unmatched performance with 200,000 cells/cm³ density, >97% closed-cell structure, and minimal water absorption for superior thermal efficiency.
	Outstanding Fire Resistance	Rigid polyurethane foam exhibits excellent fire resistance, forming a charring protective layer during combustion unlike EPS XPS, which melt and drip. When bonded with metal facings, its flame retardancy improves further, achieving GB 8624-2012 B1 fire rating.
	Leading Pentane Technology	Our fluorine-free, high-pressure foaming process emits zero ozone-depleting substances (ODP=0) and meets international environmental conventions (e.g., Montreal Protocol) and European eco-standards, minimizing greenhouse gas impact.
	Proprietary Airtight Technology	Exclusive seam-sealing panel design integrates adjacent insulation layers seamlessly, eliminating thermal bridges and enhancing airtightness ideal for controlled-atmosphere storage.
	Energy-Saving & Eco-Friendly	All materials comply with stringent national/environmental standards. Resistant to bacteria/parasites, our panels withstand harsh cold-chain conditions. The airtight system reduces energy consumption by 30%, slashing operational costs.
	Quick & Easy Installation	Pre-engineered panels and mature assembly systems enable all-weather construction, cutting installation time, labor costs, and material waste.

Product specifications

Specification	Details
Core Thickness	50/75/100/150/200 mm (PU/PIR )
Panel Width	Standard 950mm,1120mm
Panel Length	20FT container: ≤ 5.95m 40FT container: ≤ 11.95m
Density of Core	40 kg/m³
Thermal Conductivity	≤ 0.022 W/(m·K)
Fire Rating	Class B1 (excellent fire resistance)
Surface sheets	PPGI/ PPGL/ Aluminum sheets/ Al-Mg-Mn alloy metal sheets/ Stainless steel
Aluminumsheets/Al-Mg-Mnalloymetal sheet	0.70 - 1.20 mm
Steel thickness	0.40 - 0.70 mm
Stainless steel	0.40 - 0.60 mm

Product ribs

Sandwich panels ribs

There are 4 different kinds of panel surface treatment (ribs),we named them as micro ribs, wide ribs, pure flat, and embossed. You can choose which type is suitable for your project.

Product applications

Our lightweight PU/PIR sandwich panels deliver superior thermal insulation (0.022W/m·K) and fire resistance (B1-rated) for steel structures. Easy to install, these energy-saving panels cut costs by 30% while meeting strict environmental standards.They are ideal for industrial warehouses, cold storage & prefab buildings.

Cold storage

Packing & Delivery

☆ Packing

·Seaworthy packing standards:

sandwich panels packing

PVC on both sides to protect the roof panel surfaces;

Packed with kraft paper to protect the panel ends;

Put EPS foam on the each space to keep the panels from squeezing each other.

If you have special requirement,please feel free to discuss with us.This is to make us improved,and protect your goods well.

☆ Delivery

Delivery time for regular colors,coating types and thickness: 7-10 days ;

Delivery time for special colors,coating types and thickness: 15-25 days ;

Delivery term: FOB/CIF/CFR/DDP is available;

We can find good forwarder for customer or accept appointed forwarder from customers.

Service&Support

☆Service
Xiamen Yumi Imp. &Exp. Co., Ltd. Is one combination of industry and trade company, and very professional with steel structure products in China. We are proud of our product quality and customer service and competitive price.And our products are sold worldwide, such as America, South America, Europe, Southeast Asia, Africa etc.
1)Professional sales team,One-to-one service;
2)Combination of industry and trade company,to ensure the service and price;
3)Experienced engineer team to offer professional technology service;
4)Intimate after-sales service.
☆Support
Experienced technology suport, competitive price, professional service, we are here to help you go on with your project smoothly.