Chowdhry Rubber and Chemical Co. Supplies Precipitated Calcium Carbonate for Hawaii Chappals. Chowdhry Rubber and Chemical Co. Is an ISO 9001:2000 certified company. The company supplies premier grade rubber chemicals like Microfine, Kinfine, EVA, hi-tech black carbon rubber chemicals, synthetic rubber chemicals, pigments, pilcure MBT, pilcure MOR, pilcure DCBS, pilcure ZDC, pilcure TMT, pilflex-13, pilflex-100, pilnox-TDQ, pilgrade-PVI, etc. The Precipitated Calcium Carbonate for Hawaii Chappals can be produced from marble, or it can be prepared by passing carbon dioxide into a solution of calcium hydroxide. The Precipitated Calcium Carbonate is used for manufacturing Hawaii chappals, slippers in rubber industry as matting agent in paints and also for coating floors.