HD-DB-30 is double-component rigid PU foam system specially designed for spraying. B-component is modified polyisocyanate(MDI), while A-component is made up of polyether polyalcohol, blowing agent,catalyst and stabiliser,etc. The systems is featuring of rapid reaction and solidification and thus applied to the thermal insulation, refitting and sealing for cold rooms, roofs, walls, tanks, containers and cargo ships.etc.
Physical Properties:
A Component | B Component | ||
Item | Index | Item | Index |
Hydroxy Content (MgKOH/g) | 450±50 | -NCO Content (%) | 30-33 |
Viscosity (25℃)(MPa.s) | 1000±300 | Viscosity (25℃)(MPa.s) | 200±40 |
Specific Gravity (25℃)(g/cm3) | 1.180±0.05 | Specific Gravity (25℃)(g/cm3) | 1.235±0.02 |
Proportion of Weight:A:B=100:(100-120)
Peaction Time:(Data of Laboratory Test, Working Temperature at 25℃)
Reaction Time | HD-DB-30 | |
CT(sec) | 3-5 | |
GT(sec) | 10-15 | |
TFT(sec) | 18 |
Foam Performance:
Item | Value | Testing Method | |
Overall Density (kg/m3) | 35-40 | GB6343-86 | |
Core Density (kg/m3) | 30-32 | GB6343-86 | |
Comprissive Strength (MPa) | ≥0.15 | GB8813-88 | |
Thermal Conductivity (W/m.K) | ≤0.025 | GB10294-88 | |
Closed Cells Content (%) | ≥90 | ISO DIS4590 | |
Dimensional Stability (%) | ≤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