Eliminate unsightly rust stains from boats or wherever they may form.This professional grade formula removes surface stains and is an excellent choice for eliminating rust stains caused by inferior stainless steel hardware and screws. Spray it on, let it work, wipe or brush the treated area and rinse it clean.Key featuresEasy to use spray on formulaNo rubbing or scrubbing requiredSafe for use on fiberglass, metal and painted surfacesRemoves rust drip stainsContains no harsh acidsCleans corrosion stains caused by metal hardware, nuts, bolts and other marine fittings