Express 2 Penta Putty Refill 2pk VPS impression material for the two-step putty wash and one-step tray wash techniques for automatic mixing and dispensing in the Garant dispenser. Indications: crown and bridge impressions, inlay and onlay impressions. Fast setting Quick products for 1 or 2 units. Express 2 Penta PuttyWorking time (including mixing): 1 min 30 secs.Setting time: 3 mins.