[911M491]

Hi Mark

The steps you are reviewing below are correct. See my notes. And yes your anodizer or their tech should know about the step 4 process. You want a greater build up or growth of oxidation from the electolytic solution and higher voltage for a thicker coating for the stain finish. Aluminum anodizing is done in an acid solution which slowly disovles aluminum oxide The acid action with the oxidation rate will help form the coating. Let me know if you discover something to the contrary.

1. Strip wheel and polish the outer lip. Polish only where you want the shiney finish.
2. First dip to set the outer lip finish. First dip is a Clear anodized finish.
3. Tape off outer lip to protect finish.
4. Second dip in more diluted acid solution. (Thus is confusing, seems like u would use more acid than first dip to cause dull a dull finish) Sure the anodizer will understand this. See my notes.
5. Tape off petals and paint satin black background.