Arcol Polyol E-648 Polyoxyalkylene diol 9082-00-2 Bayer PU - Polyols >> Polyether SEALANT E-648 is a 4800 molecular weight polyoxyalkylene triol used in a broad range of non-foam and foam applications. This polyol is an ethylene oxide adduct of a polyoxypropylene triol. The material contains a relatively high percentage of primary hydroxyl groups and thus has a higher than normal reactivity. The polyol is compatible with most polyether polyols and can be blended with other diols or triols to achieve desirable modifications of product properties. E-648 has potential utility in various application areas including: Caulks, Sealants, Froth Foams, and Elastomers. Ethylene oxide adduct of a polyoxypropylene triol. Used in sealants and caulks. Contains relatively high content of primary hydroxyl groups. Offers very high reactivity and compatibility with most polyether polyols. Can be blended with other diols or triols.