pentamethyldiethylenetriamine/PC-5 hard foam catalyst Overview: Pentamethyldiethylenetriamine is a highly active catalyst for polyurethane reactions, which mainly catalyzes the foaming reaction, but is also used to balance the overall foaming and gelation reactions. It is widely used in various polyurethane rigid foams, including polyisocyanurate sheet rigid foams. Pentamethyldiethylenetriamine is a chemical substance with the molecular formula...