news Reducing Post-Cure Shrinkage with Polyurethane Catalyst PC-77 in Specialty Resin Formulations Reducing Post-Cure Shrinkage with Polyurethane Catalyst PC-77 in Specialty Resin Formulations Introd... 04/0724Reducing Post-Cure Shrinkage with Polyurethane Catalyst PC-77 in Specialty Resin Formulations