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Letter 30096
Chemically Etching 303 SS [Maine]
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Hello,
I am a product designer assisting my quotation department to quote
a proposed job. We have had several of our vendors no-quote some 303
stainless parts due to the chemical etch process, and suspect that
this process may not be available within the U.S.A. Does anyone know
if the following process is available stateside?
1. remove any gross adherants (marker, etc.) using suitable
solvent.
2. degrease in 10% phosphoric acid / detergent / surfactant at
ambient temperature.
3. wash in cold water.
4. immerse in undiluted nitric acid / hydrofluoric acid (Fluorinox)
at ambient temperature ~12 hours.
5. wash with cold water
6. rinse in de-mineralized water
7. dry
Chris Saulnier
Electronics Manufacturer - Gray, Maine, U.S.A.
Ed. note: A 12-hour process time is a lot for most production
shops, and hydrofluoric acid is something that must be treated with
respect, Mr. Saulnier. But four of our supporting advertisers
contacted you to quote on this, so it is not unavailable.
Dear Reader: Sorry, but there is no provision for public reply to
this particular letter because it appears to be a commercial inquiry
rather than a technical question. Our supporting advertisers should
reply privately.
- I want to see a list of current
letters where
public replies are welcomed.
-
- My company is a supporting advertiser at
finishing.com and we want the contact information to reach
the inquirer privately.
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- I want to post a new
question or inquiry of my
own.
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