ABOUT

HD-DB-10 Rigid PU Foam Systems for Injection

Beijing Maohua PU Building Materials Co., Ltd.

HD-DB-10 is double-component rigid PU foam systems specially designed for pipe insulation by injection method with machines or hands. B-component is modified polyisocyanate(MDI), while A-component is made up of polyalcohol, blowing agent,catalyst and stabiliser,etc. The systems is featuring of wide technique scope and uses, and applying to the production of pipe insulation and mini cold room panels. It has two kinds of brands.

*  HD-DB-10H, applied to the medium/small sized pipe insulation by handy injection, one-step method and pipe-in-pipe technique.

*  HD-DB-10M, applied to the small cold room panel by handy injection method and the large sized pipe insulation by handy injection, one-step method, pipe-in-pipe technique.

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-10H	HD-DB-10M
CT（sec）	15-30	25-40
GT（sec）	45-100	110-220
RT（sec）	60-160	160-300
DMT（sec）	180-600	600-1200

Foam Performance：

Item	HD-DB-10H	HD-DB-10M	Testing Method
Core Density (kg/m3)	35-45	38-45	GB6343-86
Free Density (kg/m3)	25-35	25-35	GB6343-86
Compressive Strengty (MPa)	≥0.15	≥0.15	GB8813-88
Thermal Conductivity (W/m.K)	≤0.025	≤0.025	GB10294-88
Closed Cells Content (%)	≥92	≥92	ISO DIS4590
Dimensional Stability (96h/100℃)(%)	≤3	≤3	GB8811-88
Water Absorption (%)	≤3	≤3	GB8810-88

        Packaging：Galvanized Zine Metal Barrel    A Component：200kg/barrel；B Component：250kg/barrel
        Shelf Life：6 months