ABOUT

HD-AW-8880 Imitation Wood PU Foam Systems

Beijing Maohua PU Building Materials Co., Ltd.

HD-AW-8880 is double-component rigid PU foam system specially designed for manufacturing imitation wood PU products. B-component is modified polyisocyanate(MDI), while A-component is made up of polyether polyalcohol,blowing agent,catalyst and stabiliser,etc. HD-AW-8880 has two kinds of brands.

*  HD-AW-8880H is applied to imitation wood PU products with higher hardness and density, such as furniture-bed frames, chairs and desks, windows and doors, furnitures and construction ornaments.

*  HD-AW-8880M is applied to imitation wood PU products with medium hardness and density, such as indoor decorative bars,imitation plate, art relief, artwares and toys.

Physical Properties：

A Component		B Component
Item	Index	Item	Index
Hydroxy Content (MgKOH/g)	400±50	-NCO Content(%)	30-33
Viscosity (25℃)(MPa.s)	800±100	Viscosity (25℃)(MPa.s)	200±40
Specific Gravity (25℃)(g/cm3)	1.18±0.05	Specific Gravity (25℃)(g/cm3)	1.235±0.02

        Proportion of Weight：HD-AW-8880H    A：B = 100：（100-200）
                                                   HD-AW-8880M    A：B = 100：（100-110）
        Reaction Time：（Data of Laborabory Test, Working Temperature at 25℃）

Reaction Time	HD-AW-8880H	HD-AW-8880M
CT（sec）	30-35	28-32
GT（sec）	80-105	65-72
RT（sec）	100-110	95-102
DMT（sec）	480±60	300±60

Foam Performance：

Item	HD-AW-8880H	HD-AW-8880M	Testing Method
Moulding Density (kg/m3)	250-400	160-250	ISO845
Freedom Density (kg/m3)	120-200	90-120	ISO845
Product Shrinkage Ratio (%)	0.4-0.6	0.5-0.7	---
Thermal Conductivity (W/m.K)	0.07-0.08	0.06-0.07	ISO2582
Surface Hardness (Shore D)	35-55	25-45	ASTMD2240-68
High-temperature Resistance (℃)	70-110	70-110	ASTMD648-56
Breaking Strength (MPa)	20-25	25-30	ASTMD790-71

        Packaging：Galvanized Zinc Metal Barrel Packag    A Component：200kg/barrel；B Component：250kg/barrel
        Shelf Life：6 Months