... 600mesh,800mesh,1000mesh,1250mesh,2500mesh,3000mesh,4000meshUsage1. As raw material for paints, printing ink, plastics, rubber and storage battery. 2. ... As surface smear for photographic paper and calendered paper; as sizing agent for textile industry. 3. As ... clarifying agent for glass products. 4. As protective material for radiation; also used for ceramics, enamel, perfumes and ...