Calcium Lime Rust
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Its ingredients include water, lactic acid, gluconic acid, lauramine oxide, Propylene Glycol, n-Butyl Ether, and solvents that dissolve cobalt gel coats and paint. One formulation is Lactic Acid 12-18%wt, Gluconic Acid 2.50-3.75%wt, Lauramine Oxide 1.50-3.25%wt with the remainer being water.  The product also contained phosphoric acid at one time, but it is now phosphate-free.
TV commercials display "Made in USA" and "Women Owned" logos.