MARK3 EZ VPS Putty Impression Material, Fast Set, 300 mL Base & 300 mL Catalyst. Kneadable, very high viscosity material. Non-sticky with exceptional dimensional stability and superior elastic properties (high elastic memory). Work time 1 min, set time 3 min. Compare to Express, Genie, Flexitime Putty. 300 ml each of base & catalyst