Defend VPS Impression Material Heavy Body, Regular Set, 50 ml Cartridges, 4/Pk. Super Hydrophilic. High performance (HP) cartridge system. Excellent tear strength to maintain impression integrity upon removal and precise impressions no matter what technique you use. Exceeds ISO 4380 standard which will help eliminate remakes. Work time: 2'30', set time: 1'00', total set time: 3'30'. No mixing tips included. 4 - 50 ml cartridges