Radiopaque, dual-cured composite core material. Consists of barium glass in a bis-GMA matrix. Contains fluoride to reduce the incidence of secondary caries. Compatible with 2-bottle, primer-adhesive bonding agents but should not be used with one-bottle bonding systems. Working time is 1.5 minutes with a self-curing time of 5 minutes. Depth of cure is 2mm with 20 seconds of light exposure or 4mm with 40 seconds.