GC Gradia Core Dual-cure Composite SetGradia Core has a self etching bonding system that requires only one step. The simple mixing system produces a homogeneous mix of the two paste components with optimal consistency, a long working time, and a rapid dual cure. A single product can be used to cement the post as well as to build up the core. Excellent physical properties combine with ease of use to create a product that meets all of your primary build up requirements. Indication Structure