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Can SAF paint steel?

No. Steel requires a different pretreatment than aluminum. The pretreatment for steel is known as “phosphatizing” and SAF does not perform this process.

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Can I weld anodized aluminum?

Parts can be welded prior to anodizing. The use of 5356 welded rod is strongly recommended, though some discoloration will still occur. 4043 is the worst choice because it will turn a sooty black when anodized. Grinding away the weld…

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Can anodizing hide scratches?

The usual rule of thumb is that if you can feel a scratch by rubbing your fingernail across the surface, you will be able to see the scratch after anodizing. It is always helpful for the finisher to understand the…

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Can I expect uniform color from anodizing?

Anodizing is similar to staining wood. There are a number of variables involved that can cause some color variation. Anodizers have made incredible improvements in controlling the color of anodized aluminum and SAF's experts are skilled at minimizing these variations.

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Should I request anodized color range samples?

Generally, yes. You should request anodized color range samples. It is important to remember that anodized color is not defined by simply “light” and “dark.” Like the controls on a conventional TV set, the hue and chromaticity will have an impact on…

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What about anodizer rack marks?

Electrical contact must be made to each part to be anodized. The more electrical current required, the greater the electrical contact. The size of the contact therefore depends on the anodizing process and the size of the part being anodized.…

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What aluminum alloys are recommended for anodizing?

Most aluminum alloys will build aluminum oxide in an anodizing tank, so the answer to this question depends on the anodizing process and the desired result. Copper containing 2000 series are generally the most difficult to anodize and 5000 or…

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