Cure Terms Glossary

B-Stage

A B-stage is created when a formulation, having the appropriate stoichiometry for full cure, is held at an intermediate stage simply by cooling. A B-stage resin may have a relatively short shelf-life (e.g. compared with a prepolymer), but the cure can be reactivated without the addition of curing agents. A resole is a B-stage phenolic resin which has been thermally quenched just short of the gel time.