Home
 
FAQs
 
Good
Books
Public
Forum
SEARCH  🔍
This Site
finishing.com -- The Home Page of the Finishing Industry
Education, Aloha, & Fun
A roundtable with 60,000 topics and a seat for you


topic 42216

Cottonball and/or Mirror Finish



A discussion started in 2006 and continuing through 2020 so far.
Adding your Q. / A. or Comment will restore it to our busy Current Topics page

2006

Q. How is a cottonball / mirror finish achieved?

Is there an existing industry standard/specification?

Perry Snook
- Canada


2006

? Question about your question. You kind of answered the question yourself. Standards can be numerical evaluations or visual to the person. What is mirror to one person may only be bright to another. Even a low numerical RMS may not be a reflective mirror finish. Therefore, it is something like describing an adjective rather than a noun type word, if that makes any sense either.

tony kenton
AF Kenton
Hatboro, Pennsylvania


2006

A. I agree with Mr. Kenton. The closest you'll get to a mirror standard is a sample plate produced by any of the specialists on surface finishes and a pair of trained 20/20 vision eyes. For inspection purposes, that'll be about all you need. If your interest is in producing that specific finish on a large number of metal parts, approach a mass finisher specialist. If you want to mirror polish a prototype or small run of large, heavy and complicated geometry parts, maybe we can help.

Guillermo Marrufo
Monterrey, NL, Mexico



September 1, 2020

Q. What Ra will provide a cotton-ball finish on a 316L SS surface?
[What finish will not pull fibers out of a cotton ball slid over the surface? Ra16 µ-inch or smother?]

Ken Schroeder
- Grand Rapids Minnesota

Q, A, or Comment on THIS thread SEARCH for Threads about ... My Topic Not Found: Start NEW Thread

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

  If you need a product/service, please check these Directories:

Jobshops Capital Equip. & Install'n Chemicals & Consumables Consult'g, Train'g, Software Environmental Compliance


©1995-2021 finishing.com, Inc., Pine Beach, NJ   -   About finishing.com   -  Privacy Policy
How Google uses data when you visit this site.