A polyurethane quasi-prepolymer,Baytec ME-120,is said to "bridge the gap" between a full,solid prepolymer (such as Baytec ME-090) and a quasi-prepolymer (such as Baytec ME-230).Bayer polymers reports that ME-120 will produce polyurethane elastomers with excellent overall physical properties by either the hot-cast process or the less-demanding one-shot process.
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