Take 1 Advanced Hand-Mix Putty Refill A vinylpolysiloxane (VPS) impression material with an optimum combination of physical properties: strength, elasticity, dimensional stability and the ability to register detail in any environment. Provides a wide selection of set times, delivery systems and consistencies. Contains: 1 x 400g Base, 1 x 400g Catalyst, 18 x Putty spacers.