Admira Fusion x-tra Nanohybrid Ormocer Composite, Light-Cure, Capsule Refill, 0.2 g, Universal, 15/Pk, 2811About this product 25% shrinkage rate 4. Biocompatible Cures in 4 mm. layers 1. 25% shrinkage rate Biocompatible Admira Fusion x tra is a nano ORMOCER bulk fill material used for restorations, fissure sealing, repairing veneers, and core build up. It is a purely ceramic based composite with a reliable curing depth of 4 mm. layers and a polymerization shrinkage rate of 1. 25%. It is inert and highly biocompatible with remaining resistant to