GC Fuji IX GP EXTRA is the latest addition to the well-established family of glass ionomers that offer unsurpassed wear resistance, compressive strength, and durability. While maintaining the ample working time of GC Fuji IX GP FAST (1 1/4 minutes), GC Fuji IX GP EXTRA allows final finishing in only 2 1/2 minutes from initial mix. The faster final set saves valuable chair time which provides improved stability against water, an important feature in challenging oral environments. This product contains a next generation glass filler, SmartGlass™. The filler elicits higher translucency, fluoride release, reactivity and a faster setting time.