Formula CSH-90 is a scientifically advanced hybrid compound using stacking of silica refinement technology for use in concrete polishing processes. CCS Formula CSH-90 is recommended for concrete of 32MPa plus. For concrete less than 32MPa use CCS Formula CSH-150. Once CCS Formula CSH-90 impregnates the pores of the concrete, it positively and rapidly reacts with the calcium hydroxide found in the capillaries and canals of the concrete. This chemical reaction binds and strengthens the concrete to provide an extremely dense, hard and closed off surface to assist in achieving a higher level of depth, clarity and reflection of polished concrete with less grinding.