Baytec MS-041 Isocyanate-terminated polyester prepolymer Bayer PU - Prepolymers >> Isocyanate PU - Prepolymers >> Polyester SEALANT Baytec MS-041 Isocyanate-terminated polyester prepolymer Printing rolls, wiper blades, seals Low durometers without plasticizers, tear strength Isocyanate-terminated polyester prepolymer. Used in seals. Offers low durometers without plasticizers and tear strength.