Flash is a light-cured resin-based composite dental restorative that contains approximately 76% by weight (57% by volume) inorganic filler with an average particle size of 0.4 microns. Radiopaque. Flash represents years of research aimed at bridging the gap between microfill and hybrid composite materials. A proprietary grinding process combined with sophisticated rheological modifiers allows Flash to polish to a very high, long-lasting luster similar to micro fills while providing strength equivalent to today's micro hybrids. It is recommended that the composite be stored at ambient temperature. - Shade: A2.