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Product Introduction
PIR Sandwich Cold Storage Panels, also known as polyisocyanurate sandwich panels, are high-performance enclosure panels specially designed for modern cold storage. The core material is polyisocyanurate (PIR) rigid foam, compounded with high-strength color steel plates on both sides to form a solid sandwich structure. The product integrates excellent insulation, fire safety and structural support functions. Its thermal conductivity is as low as 0.024 W/(m·K), and it can reach the B1 grade flame-retardant standard. It effectively isolates heat exchange between inside and outside, creating a stable low-temperature environment. It is widely used in the walls and roofs of cold chain logistics centers, food processing workshops and pharmaceutical cold storage facilities, and is a key building material to ensure the energy-saving, safe and reliable operation of cold storage.
Product Advantage
The most prominent feature of this product is its superior fire safety. The decomposition temperature of the PIR core material is as high as 260℃, much higher than the 220℃ of ordinary PUR materials. After special formula treatment, the board has extremely low smoke density when burning, meeting and exceeding the national B1-level flame-retardant standard. Some products can even pass more stringent fire protection tests, providing higher safety guarantees for cold chain storage.
Advanced PIR foaming formula is adopted to ensure the board has industry-leading insulation efficiency. Its thermal conductivity is stably maintained at ≤0.024 W/(m·K) for a long time. This allows the use of thinner plates to achieve better insulation effects at the same design temperature, effectively reducing cold leakage and cutting down customers' long-term operating energy consumption by more than 30%.
Thanks to its unique molecular structure, the PIR core material has higher density and strength. The core material density of the product is ≥42kg/m³, with excellent compressive strength. The bonding strength with high-quality metal panels is ≥0.12MPa, ensuring the overall structural integrity of the board. It is suitable for the walls and roofs of large-span and high-rise cold storage facilities without the risk of deformation or collapse.
The PIR core material has an extremely high closed-cell rate (>95%) and ultra-low water absorption rate (<2.5%). In the long-term high-humidity environment of cold storage, it hardly absorbs water, effectively preventing the permanent decline of insulation performance and board deformation caused by core material moisture. The dimensional change rate is <1.5%, ensuring the stable operation of cold storage for decades.
All products are produced with environmentally friendly fluorine-free foaming agents such as cyclopentane, meeting international environmental protection requirements and passing green building materials certification. The surface layer uses 55% aluminum-zinc alloy coated steel plates with strong corrosion resistance. The entire system has a service life of more than 25 years, achieving economic efficiency and reliability throughout the life cycle.
The factory-prefabricated panels are equipped with a precise full-mouth lock seam interlocking structure. Combined with special low-temperature sealant, they can be quickly and tightly spliced on site. This systematic installation method ensures the airtightness and integrity of the entire enclosure structure, eliminating cold bridges from the source and improving construction efficiency by up to 40%.
Technical Parameters
The product model is PIR Panel with a B1 fire rating and customizable specifications. The manufacturer provides turn-key project services, with a factory area of 600,000 square meters and 1,800 employees. It has obtained multiple certifications including CCC, ISO9001 and FM Approvals. The product features environmental protection, fire resistance and metal panel structure, with a production capacity of 1000 units per year. It is produced in China, with the trademark SQUARE, and the transport package can be customized according to customer needs.
Model NO. | PIR Panel |
Fire Rating | B1 |
Customized | Customized |
Service | Turn-Key Project |
Employees | 1800 |
Specification | Customized |
Origin | China |
Feature | Environmental, Fireproof, MetalPanel |
Certification | CCC, IS09001,FM Approvals |
Manufacturer | Yes |
Factory Area | 600000 Square Meters |
Transport Package | Customized |
Trademark | SQUARE |
Production Capacity | 1000units/Year |
FAQ
The core difference lies in the molecular structure. PIR has been modified to form more stable isocyanurate rings, with a decomposition temperature of up to 260℃, which is significantly better than PUR (about 220℃). It produces less smoke when burning and achieves a more stable and reliable B1-level flame-retardant effect.
No. The PIR board has an extremely high closed-cell rate (>95%), and its thermal conductivity can be stably maintained at ≤0.024 W/(m·K) for a long time. Even in ultra-low temperature environments, its foam structure remains stable, effectively blocking heat transfer and ensuring no decline in insulation performance.
Its long-term value is mainly reflected in three aspects: better fire safety reduces insurance and risk costs; lower long-term thermal conductivity brings significant energy-saving benefits; higher dimensional stability reduces maintenance needs, making the comprehensive cost throughout the life cycle more advantageous.
A dedicated eccentric hook lock or tongue and groove insertion system is adopted, combined with low-temperature elastic sealant. This design can maintain tight interlock when the sheet shrinks due to temperature differences, achieving dual physical and chemical sealing and effectively preventing cold bridges and cold leakage.
