Zone Non-Eugenol Temporary Cement - Regular Shade 15 Gm. Dual Syringe. Hard-setting, crystalline zinc oxide, non-eugenol cement. Optimal for temporary cementing of crowns, bridges, and all provisional needs. Will not crack, soften, or discolor acrylic or polycarbonate crowns. Gentle to nerve endings and tissue. 30- second mixing time and a 2-minute working time.