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

• Fire resistance rated as B1
• Operating temperature range: -196℃ to +120℃
• Excellent dimensional stability
• Customizable cutting in panels and pipes to meet customer requirements

As an ideal organic low-temperature heat insulation material with small thermal conductivity and high dimensional stability, PIR foam is suitable for a wide temperature range and widely used in LNG, ethylene, cold storage, and other low-temperature industries.

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 a dry, lightproof, shady, and ventilated place, away from heat sources and protected from sun exposure
• Inner package: black polyethylene bags; Outer package: cartons

• Handle PIR gently, avoiding rolling, collision, and heavy pressure during movement
• When applied to pipe and equipment insulation, fasten PIR with glass fiber tape or steel band
• Use a saw for cutting during application