Multipurpose Polyisocyanurate Pipe Insulation Foaming Material PIR Spherical Plate
Widely used in wall insulation, low temperature storage facilities, parking platforms, airport railway, construction of concrete roof and roof structures, highways, and more.
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 features small thermal conductivity and high dimensional stability, making it an excellent 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 according to requirements
| Item | Unit | Technical Data | Test Mode |
|---|---|---|---|
| Density | kg/m3 | ≥40 | ASTM D1622 / ISO 845 |
| Thermal Conductivity | W/(m*K) |
≤0.035 (+100℃) ≤0.029 (+50℃) ≤0.025 (+10℃) ≤0.024 (0℃) ≤0.023 (-50℃) ≤0.022 (-100℃) ≤0.017 (-150℃) ≤0.016 (-170℃) |
ASTM C177 |
| Compressive Strength | kPa | +23℃: ≥200 -165℃: ≥280 |
ASTM D 1621 |
| Tensile Strength | kPa | +23℃: ≥320 -165℃: ≥265 |
ASTM D 1623 |
| Flame Spread Index | ﹤25 | ASTM E84 | |
| Oxygen index | ≥30 | GB/T 2406.2 | |
| Water Absorption by Vol. | % | ≤2 | ASTM D2842 |
| Water Vapor Permeability | ng/(Pa*s*m) | ≤5.5 | ASTM E96 |
| Closed Cell Ratio | % | ≥95 | ASTM D6226 |
| Lineal Thermal Expansion Coefficient | m/(m*K) | ≤70×10-6 | ASTM D696 |
| PH Value | 5.5-7 | ASTM C871 | |
| Chloride Content | ppm | ≤60 | GB/T 11835 |
| Elastic Modulus | MPa | ≤16 | ASTM D1623 |
| Service Temp. | ℃ | -196～+120 |
As an ideal organic low-temperature heat insulation material with small thermal conductivity and high dimensional stability, PIR is suitable for a wide temperature range and widely used in LNG, ethylene, cold storage, and other low-temperature industries.
- PIR Shell: inner layer + middle layer (if necessary) + outer layer
- Secondary Vapor Barrier: PAP aluminum foil
- Main Vapor Barrier: mastic + fiberglass meshes + mastic
- Metal Protective Layer: aluminum alloy plate, stainless steel plate, aluminized steel plate, GRP
- Sealant: HS-10-02, Foster 95-50, etc
- 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 with glass fiber tape or steel band
- Cut with saw during application
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.