... of light-colored rubber products such as seals,dust cover,rubber covered roller,lining,hose coating. Polychloroprene Rubber CR232n A xanthogen-modified polychloroprene rubber ... at elevated temperature. Used for manufacture of light-colored rubber products such as seals,dust cover,rubber covered roller,lining,hose coating. ... 20and half a year below 30from the date of production. neoprene Rubber Cr232