Flexitime® Xtreme 2 The Original Single Unit Impression Solution – With a Berry Twist™. • Experience enhanced physical properties for increased hydrophilicity. • Improved tear strength and greater toughness. • Achieve efficiency with a 30- to 90-second working time, perfectly suited for your more common single unit impressions. • Impress your patients with its wild berry aroma. • Distinguish between viscosities with high-contrast colors.