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Polishing bk7

  1. Jul 22, 2009 #1
    I have a bk7 prism (borosilicate...) and I'd like to polish it to a 4020 scratch surface rating. How would I go about doing this?
  2. jcsd
  3. Jul 22, 2009 #2

    Andy Resnick

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    Last edited by a moderator: May 4, 2017
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