HP-DB-40I is four-component rigid PIR foam system specially designed for PIR sandwich panels. B-component is modified polyisocyanate(MDI), while A-component is made up of polyether polyalcohol, catalyst and stabiliser,etc., C-component is blowing agent and D-component is flame retardant. The systems is featuring of good foaming stability and dimensional stability, excellent insulation performance and fire resistant performance.
Physical Properties:
A Component | B Component | ||
Item | Index | Item | Index |
Hydroxy Content (MgKOH/g) | 250±50 | -NCO Content (%) | 30-33 |
Viscosity (25℃)(MPa.s) | 800±200 | Viscosity (25℃)(MPa.s) | 200±40 |
Specific Gravity (25℃)(g/cm3) | 1.21±0.05 | Specific Gravity (25℃)(g/cm3) | 1.235±0.02 |
Proportioning of Weight:A:B=100:(100-120)
Reaction Time:(Data of Laboratory Test, Working Temperature at 25℃)
Reaction Time | HD-DB-40I | |
CT(sec) | 15±5 | |
GT(sec) | 45±10 | |
RT(sec) | 50±15 |
Foam Performance:
Item | Value | Testing Method | |
Core Density (kg/m3) | 36±2 | GB6343-86 | |
Free Density (kg/m3) | 33±1 | GB6343-86 | |
Compressive Strength (MPa) | ≥0.15 | GB8813-88 | |
Thermal Conductivity (W/m.K) | ≤0.025 | GB10294-88 | |
Closed Cells Content(%) | ≥92 | ISO DIS4590 | |
Dimensional Stability (%)(-30℃-100℃/96h) | ≤3 | GB8811-88 | |
Water Absorption (%) | ≤3 | GB8810-88 |
Packaging:Galvanized Zinc Metal Barrel。A Component:200kg/barrel;B Component:250kg/barrel
Shelf Life:6 months