ABOUT

HD-AF-5188 Air Filter PU Systems

Beijing Maohua PU Building Materials Co., Ltd.

HD-AF-5188 is double-component PU raw material specially designed by Beijing Bora Polyurethane Products Co., Ltd. for the production of automobile air filter sealing materials. B-component is modified polyisocyanate(MDI),while A-component is made up of polyether polyalcohol,catalyst, surface-active agent,blowing agent and colour paste,etc.

Physical Property：

A Component		B Component
Item	Index	Item	Index
Hydroxy Content (MgKOH/g)	105±15	-NCO Content (%)	28±1
Viscosity (25℃)(MPa.s)	400±100	Viscosity (25℃)(MPa.s)	200±50
Specific Gravity (25℃)(g/cm3)	1.15±0.05	Specific Gravity (25℃)(g/cm3)	1.22±0.05

        Proportion of Weight：A：B = 100：（30-40）
        Reaction Time：（Data of Laboratory Test, Working Temperature at 25℃）

Reaction Time	HD-AF-5188
CT（sec）	30-40
GT（sec）	60-90
RT（sec）	120-140

Foam Performance：

Item	Index	Item		Index
Density (kg/m3)	180-380	Tensile Strength （mPa）		>0.9
Hardness (Shore A)	20-60	Elongation at Break（%）		120-170
High-temperature Resistance（℃）	-40-140	Dimensional Stability at 40% Compression （%）		<2

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


Note：HD-AF-5188 series can provide various systems of relative brands according to products' detailed use and performance requirement from clients. Please contact Beijing Bora Polyurethane Products Co.,Ltd for more information about technology and business.