Aluminum Grille Resto
The next to last step was the anodizing itself, which took about 15 minutes in a 20 percent bath of electrically charged sulfuric acid that transforms the surface of the aluminum to aluminum oxide through a chemical reaction. The longer a part stays in the bath, the deeper the anodizing penetrates its surface. Finally, the trim was dipped in a nickel acetate bath, which seals the open pores of the anodized aluminum against contamination. After drying, it was ready to put back on the car. The difference after restoration is astonishing. If you look closely, you can see where the broken slats were welded, but most of this will be covered up when we repaint the black vertical lines between the rows of slats. We can also use some chrome paint to camouflage the marks even more.
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