sanwich Plattenmaterial

polyurethane panel material combination polyether polyol and isocyanate 1.physical performance: light yellow liguid density:1.08-1.13g/ml(20degrees) viscosity:250-350mpa.s(25degrees) HO value:150-350mkoh/g 2.recommended ratio: this product(polyol):90 fire-retardent agent:10 rigid foam isocyanate:160 3.reaction parameter: stiring time:6secs cream time:8-15secs gel time:40-50secs free track time:52-60sec 4.package:210kg/drum 5.storage time:6months if tested ok after 6months,it still can be used.