... proppant 30/50 low density high pressure resistance, high conductivity, low acid solubility What is ceramic proppant used for?Ceramic proppant are ... the indispensable materials used in acid fracturing and hydraulic fracturing of new and existing natural ... , 16-20 mesh, 16-30 mesh, 20-40 mesh, 30-50 mesh, 30-60 mesh, 40-60 mesh, 40-70 mesh ...