Build-It FR Fiber Reinforced Core Material is the perfect material to use with FibreKleer 4x and FibreKor Fiber Posts. Formulated to flow and stack without slumping, the material’s unique viscosity enables it to be used as both a core build-up material and a post cement. Specially treated glass fibers provide a minimum compressive strength of 300 MPa, for a strong and reliable foundation for your indirect restorations. Designed to offer optimal versatility and performance, Build-It FR Core Material self cures in minutes or light cures in seconds to a hard consistency. Choose from shades A2, A3, Opaceous White, Gold, and Blue in either 25ml auto-mix cartridges or 4ml Mini Mix™ syringes.