High-strength core composite. Dual-cure automix core resin. Radiopaque. With Absolute Dentin, it displays excellent flow directly out of the cartridge for simple placement and minimal waste. Plus, with dual-cure capabilities, it means you don't have to build-and-light-cure the core in layers. Just express the material onto the tooth and light-cure the surface for 40 seconds; the rest of the material will self-cure in approximately 4 minutes.