Celogen TSH-C p-Toluenesulfonylhydrazide Crompton Surfactants Epoxy (EP) Polyesters Rubber - Elastomer (Chloroprene, Butyl …) SEALANT >> Foam p-Toluenesulfonylhydrazide with CaCO3. Used as a low-temperature foaming agent in rubber, plastics, and thermoset materials such as epoxies and polyesters.