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RMS to emery equivalency (275 rms)




I have a customer requesting a 275 rms finish. Can anybody tell me what the approx. emery grit equivalency would be.

These parts are for mail sorting machines and he needs a gritted surface to get a better grip on the envelopes. He has been using a plasma spray system in the past but bond strength has been an issue.

Robert Freyvogel
textured carbide coatings - Butler, Pennsylvania, USA
2004



WOW! Are you sure that this is an RMS spec? I'm not even sure that a metal file is that rough? Suggest you find out where your customer got this info. Sounds like what that use on aircraft carrier landing decks.

tony kenton
AF Kenton
retired business owner - Hatboro, Pennsylvania
2004




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