Since the advent of zinc phosphate cement, many other types of cement have been introduced. None, however, has demonstrated clinical superior in terms of strength, resistance to dissolution, and overall retention like Fleck__ Zinc Phosphate Cement has. And of all zinc phosphate, Fleck__ is the leading brand and cement of choice of dentists. Available colors: Snow White, Light Yellow, Yellow, Golden Yellow, Light Gray, Golden Brown, Ceramic Blend.