GC Fuji LINING LC (Powder-Liquid) is a light-cured glass ionomer that is used as a liner or a base under composite resin or amalgam restorations. It has a high-compressive strength, minimal polymerization shrinkage and extremely low solubility. GC Fuji LINING LC minimizes sensitivity and provides long-term fluoride release. It bonds well to the tooth structure and composite, creating the an ideal dentin substitute. This product also flexes and absorbs the stresses caused by the polymerization shrinkage, thermal expansion, and contraction of composite materials.