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Coolroom Panels

Coolroom panel is a metal-faced closed-cell rigid polyurethane foam sandwich panel specially designed for low-temperature environments. It is integrally composite-formed with double-sided pre-coated color steel sheets (304/316 stainless steel or aluminum sheet optional) and continuously high-pressure foamed rigid PU core. It comes with standard cam-lock interlocking structure for excellent sealing performance, which copes with the large temperature difference between inside and outside the cold room, blocks thermal bridges, prevents moisture penetration and avoids condensation and cold leakage. It integrates thermal insulation, vapor barrier, moisture proof and enclosure functions. As the mainstream insulation panel for prefabricated cold storage, blast freezers and chill rooms, it adopts CFC/HCFC-free foaming and delivers stable performance under low-temperature working conditions.

Construction

1. Face sheets (both sides): Flat metal sheet (flat sheet is standard for cold rooms, anti-slip patterned sheet optional)
- Base material: Alu-zinc coated steel / hot-dip galvanized steel S250GD / SGCC; 304/316 stainless steel and aluminum coil optional (stainless steel is preferred for anti-corrosion in food and seafood projects

- Coating: PE polyester, SMP silicon modified polyester; food-grade hygienic coating available, resistant to cleaning agents

- Steel thickness: 0.4mm / 0.5mm / 0.6mm / 0.7mm optiona

2. Core: Closed-cell rigid PUR foam, CFC/HCFC-free foaming
- Density: 40–43 kg/m³ (standard 42±2 kg/m³ for cold rooms, higher density than ordinary wall panels for better stability at low temperatures)

- Closed cell content: ≥97%, ultra-low water absorption, resistant to moisture penetration. It will not absorb water or pulverize under long-term sub-zero conditions

Side joint structure: Cam-lock (eccentric lock) male & female interlocking joint with built-in sealing groove, equipped with double-layer low-temperature resistant EPDM sealing strips. Tight joint after locking greatly reduces thermal bridge, cold leakage and condensation. Easy to assemble and disassemble, ideal for modular cold rooms

Features & Advantages

1、Ultra-low thermal conductivity & stable cold retention: The closed-cell PU core delivers excellent insulation with low cold loss and long-term stability, greatly cutting power consumption of compressors and lowering cold room operating costs.

2、Fast assembly with cam-lock & superior sealing: Tensioned interlocking via eccentric cam-lock plus double low-temperature resistant sealing strips create tight joints, effectively restraining thermal bridges, cold leakage, frost and ice formation at seams.

3、Moisture & vapor barrier, no insulation failure from water absorption: The high closed-cell structure prevents moisture ingress into the core, avoiding insulation performance degradation caused by water absorption (the key pain point for cold storage).

4、Food hygiene option available: Stainless steel facings and food-grade coatings resist acid, alkali and disinfectant cleaning, suitable for meat, seafood and pharmaceutical clean cold rooms.

5、Modular assembly, detachable & reusable: Dry installation without on-site thermal insulation work. Panels can be disassembled, modified and reused if the cold room is relocated.

6、Low-temperature shrinkage resistance: Formulated for low-temperature conditions, it resists shrinkage and cracking under sub-zero temperatures, offering better long-term stability than EPS.

7、Eco-friendly & fluorine-free: ODP=0, free of ozone-depleting substances, complying with EU and domestic environmental standards for food cold chains.

8、Suitable for both walls and ceilings: The same panel series works for cold room walls and ceilings, with dedicated hanging brackets available.

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When the shipment is in progress

In February 2023, jinxiang delivered an PU cold room panel press line to a our Nigeria old customer, which is the economic PU line for all initial investors

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Feb 23, 2023