Global Envirotech, Inc. - logoSpecialty Oil Field Additives
Scale inhibitor 512A complex phosphate-ester that inhibits scales due to calcium carbonate, calcium sulfate, and barium sulfate.  It is tolerant to high calcium content or high total dissolved solids in brines.
Scale Inhibitor 521A complex phosphate ester that inhibits scaling due to calcium carbonate, calcium sulfate and barium sulfate.  It has tolerance to high calcium and high TDS brine.
Scale Inhibitor 555A low surface tension, liquid inhibitor, specifically designed to prevent barium sulfate scale as well as almost all types of other water producing scales, such as combined iron-sulfide-calcium carbonate scale.