Quote:
Originally Posted by leddzepp
Metal Ready from POR 15 works fantastic. It also leaves a zinc phosphate coating and etching that helps paint adhere and prevents further corrosion. Muriatic acid (pool acid) also works well for removing rust, just doesn't leave the coating.
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This is the part I was referring to. Zinc phosphate is parkerizing (patented trade name). Sometimes when I parkerise you also get some white or streaky looking finish. It has to be rinsed and oiled or as I and may do rinsed and painted over which is a very good finish. The paint I use is molyresin which must be baked/cured for an hour at 300 degrees. Many military firearmes have just the phosphate but are well oiled over the years. I have a few and like the look.
Very resistant to corrosion but IMHO way overkill for the automotive aplication. Again just trying to add info.