25 LBS Assay Silica Flour/Sand 400 Mesh – PMC Supplies
25 LBS Assay Silica Flour/Sand 400 Mesh This 40 microns ground silica (flour) sand is inherently bright, white, low in moisture, inert and at least 99.2% Si02 and features unmatched fineness and consistency of particle size. Formula: Si02 ... Casting Machines; Flex Shafts; Furnaces & Kilns; Rolling Mills; Safety; Torches;
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