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Best way to polish 304L Stainless?


I use 304L (and a little 409 sometimes) stainless tubing on the twin turbo systems I design.

I want to polish this to a chrome-like finish. I don't want to use a buffing wheel, what I would prefer is something I can put on an air grinder, 4.5" electric grinder or lastly a Dremel [affil link] tool.

I have been told that there are some type of pads (said it looked like a scrunched up SOS Pads [affil link]) that already have some type of treatment on them (like Nevr-Dull [affil link] ?) and these pads are counted on a mandrel so they can be used in an air grinder, drill, etc.

The tubing is just too complicated a shape to use a buffing wheel.

What do you recommend?

Rad Craig
- Chouteau, Oklahoma

First of two simultaneous responses -- 2003

Electropolish is the best way. Find someone in your hometown that does it. Alternatively you can use wheels made of radially mounted sandpaper every time finer down to felt with polishing paste like Brasso [affil link], Hapich or whatever, but it will be very time consuming and probably won't get into recesses well.

Guillermo Marrufo
Monterrey, NL, Mexico

Second of two simultaneous responses -- 2003

Most abrasive wheel manufacturers have or handle a line of non-woven wheels that work like grinding wheels. They are easy to control and deburr as well as produce good uniform smooth surface finishes.

tony kenton
AF Kenton
retired business owner - Hatboro, Pennsylvania

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