Defend Bite Registration Material, Unflavored Fast Set, 2 - 50 mL Cartridges and 6 Mixing Tips. Work time 0:30, set time 1:00, total set time 1:30, HP type. Mousse-like and Thixotropic, fluffy vinyl polysiloxane material. Used for bite registration, copying transfers, and primary impression with bite trays. Thixotropic material has an excellent durometer of over 80 and flows easily, yet will not run or sag. 2 - 50 ml cartridges & 6 mixing tips