Arcol Polyol E-351 Polyoxyalkylene diol 9003-11-6 Bayer PU - Polyols >> Polyether SEALANT E-351 is a 2800 molecular weight polyoxyalkylene diol used in a broad range of urethane foam and other applications. This polyol is an ethylene oxide adduct of a polyoxypropylene diol. The material contains a high percentage of primary hydroxyl groups and thus has a relatively high reactivity. This polyol is com-patible with most polyether poly-ols and can be blended with other diols or triols to achieve desirable modifications of prod-uct properties. E-351 has potential utility in vari-ous application areas including: Caulks, Sealants, Froth Foams and Elastomers. Ethylene oxide adduct of a polyoxypropylene diol. Used in sealants and caulks. Contains high content of primary hydroxyl groups. Offers relatively high reactivity and compatibility with most polyether polyols. Can be blended with other diols or triols.