Express 2 Penta Putty Soft Refill Regular setting, low rigidity, designed for 1-step impression technique. Indications: Precision impressions, e.g. inlays, onlays, crowns and bridges. Designed for the one-step impression technique. Suitable for the two-step impression technique. Contains: 2 x 300ml Base Paste, 2 x 60ml Catalyst and DFU’s.