Light activated, water insoluble liner with calcium hydroxide in a urethane dimethacrylate base. Highly filled for minimal shrinkage and water absorbtion. No mixing necessary. Will not dissolve over time. Radiopaque. Kit: 2 x 1.2ml Dentine Syringe, 2 x 1.2ml Opaque White Syringe, 20 x Black Micro Tips, 20 x Black Mini Tips