Eastwood Metal Wash 7 oz
Product Review (submitted on April 17, 2010):
A little bit of powder in the spray bottle, add water, shake, and presto! Great for final wipe down of bare metal before priming. Be careful to avoid breathing the dust when taking the lid off, it's probably not good for you, so where a dust mask when miking to be safe. Will keep rust away on bare metal, but not forever. Eastwood advertises about three weeks of corrosion protection on bare metal and that's sounds about right (based on my experience).