ABOUT

HD-DB-10P Rigid PU Foam Systems for Cold Room Panels

Beijing Maohua PU Building Materials Co., Ltd.

HD-DB-10P is double-component rigid PU foam system specially designed for manufacturing sandwich panels for cold room and other construction. 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 good fluidity, dimensional stability and excellent thermal insulation performance. It is applyed to discontinuous manufacturing sandwich panels for cold room and other construction.

Physical Properties：

A Component		B Component
Item	Index	Item	Index
Hydroxy Content (MgKOH/g)	450±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

        Proportion of Weight：A：B = 100：（100-110）
        Reaction Time：（Data of Laboratory Test, Working Temperature at 25℃）

Reaction Time	HD-DB-10P
CT（sec）	35-45
GT（sec）	165-210
RT（sec）	250-300
DMT（sec）	900-1200

Foam Performance：

Item	Value		Testing Method
Core Density (kg/m3)	38-45		GB6343-86
Free Density (kg/m3)	22-25		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