Promising new replacement for Alumiprep/Alodine metal preparation. From their web site: "PreKote™ is a non-chromated metal preparation chemical utilizing a safe, hazard-free process. PreKote offers off-the-chart adhesion, improved paint flexibility, and superior corrosion protection on painted surfaces. PreKote has passed stringent testing by the U.S. Department of Defense, the Boeing Company and other coating industry leaders. By eliminating the need for chromate conversion coatings, acid etches, solvent washes and other toxic processes, PreKote can reduce paint preparation time and costs by up to 40% achieving results superior to hazardous processes and products."
Also,