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ted_yosem
Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
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Re-create factory finish on stainless sheets




I am creating a kiosk out of 16 gauge 304 stainless sheets with a 2b brushed finish. I pretty much need to refinish most of the surfaces because of welds, grinds and scratches. Is there a specific sanding machine that re-creates the factory finish?

HELP!

Billy Econ
- Newton, NJ
2002



First of two simultaneous responses --

Take an orbital sander to the stainless and give it a random finish. You will never maintain a scratch finish on a public kiosk. Make sure you use discs that do not contain iron. We recently encountered a situation where 316L was sanded with aluminum oxide discs that were found to contain 1.6% iron. The result was as you might expect. Proper passivation after achieving the desired surface profile is mandatory.

Dan Weaver
- Toccoa, Georgia
2002



Second of two simultaneous responses --

Chances are you have a No. 3 or No. 4 brush finish SS. If you do get a matching Scotch Brite pad and sand into the direction of the grain. 2B finish typical is not consider a polished finish for stainless steel.

Michael Liu Taylor
Michael Liu Taylor
specialty stainless steel distributor - Dallas, Texas
2002




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