• Thermosetting material with high level of combustion retarding, meeting B1 Fireproof Grade of the national standard GB8264
• Low thermal conductivity with excellent cold insulation effects across wide temperature ranges
• Environmentally friendly fluorin-free formulation with anti-corrosive and anti-mold properties
• High mechanical strength, dimensional stability and long service life
• Precision NC mechanical cutting available in various thicknesses for custom cold insulation requirements

Polyisocyanurate (PIR) is a premium foaming material made by the polymerization of isocyanate and polyether. With superior physical and fire resistance properties compared to polyurethane, it offers minimal thermal conductivity and exceptional dimensional stability as an organic hard thermal insulation material.

This premium organic low-temperature insulation material combines minimal thermal conductivity with outstanding dimensional stability. Suitable for extreme temperature ranges, it is widely used in LNG, ethylene production, cold storage, and other low-temperature industrial applications.

1. PIR Shell: inner layer + middle layer (if necessary) + outer layer
2. Secondary Vapor Barrier: PAP aluminum foil
3. Main Vapor Barrier: mastic + fiberglass meshes + mastic
4. Metal Protective Layer: aluminum alloy plate, stainless steel plate, aluminized steel plate, GRP
5. Sealant: HS-10-02, Foster 95-50, etc
6. Strapping Material: stainless steel tape, sub sensitive tape

• Store in dry, lightproof, shady, and ventilated conditions away from heat sources and direct sunlight
• Inner packaging in black polyethylene bags with outer carton packaging

• Handle gently - avoid rolling, collision, and heavy pressure during transport
• Secure pipe and equipment insulation with glass fiber tape or steel bands
• Use saw for precise cutting during installation