For aluminum surfaces above or below the waterline use our Zinc Chromate. This powerful primer etches into the aluminum, forming a strong surface/primer union that is resistant to corrosion.For steel and iron surfaces, especially welded joints, above the water line, use our Zinc Cold Galvanizing or Zinc Phosphate. This corrosive barrier contains a high percentage (95%) of zinc, for maximum resistance against solvents & abrasions.
