Processing of TDI Prepolymers

The mixed material is dispensed into the moulds held at a temperature of approximately 1 OO C. Pot life is different for different grades of prepolymer but lies generally in the range of 1-15 min and solidification takes place between 5 and 45 min, again dependent upon the grade of prepolymer. A normal hot-air oven cure of 3 h is then required. 

PROCESSING AND CURED PROPERTIES OF TYPICAL TDI PREPOLYMERS (ADIPRENE SERIES) 

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