pu material for filter edge

air filter material 1.superiority good mobility and uniform density distribution good degree of the bubble surface hardness,good toughness,light weight 2.physical properties apperance milky white liquid density 1.08-1.13g/ml(20degrees) viscosity:800-2000mpa.s(80-150) 3.recommended ratio this series polyether polyol:100 soft faom isocyanate:100-120 4.typical foam performance overall density 200-400kg/m3 selection pressure level >=900kpa tensile strength >=1.0N/mm strentching rate:85% surface hardness >=15