Build-It FR Fiber Reinforced Core Material is the perfect material to use with FiberKleer 4x and FiberKor Fiber Posts. Formulated to flow and stack without slumping, the material’s unique viscosity enables the clinician to dispense the material and form the core build-up with ease. Specially treated glass fibers provide a minimum compressive strength of 300MPa 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. Indication: - A fiber reinforced, dual cure post and core build-up resin composite material used for restoring a crown or missing tooth structure.