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Thread: Black tarnish (?) on wood after using router plane

  1. #1
    Join Date
    Dec 2017
    Plano, Tx

    Black tarnish (?) on wood after using router plane

    Iím working on a piece of cherry right now routing out some recessed for a baton case and after using my router plane there was a bit of black tarnish on the surface of the wood. I lightly oiled the router plane over a week ago after some sharpening but I would say for all intents and purposes it is dry. Is this normal? Will it sand out easily?
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  2. #2
    Join Date
    Mar 2004
    Cockeysville, Md
    That's happened to me many times; sand, plane or scrape and it goes away
    The significant problems we encounter cannot be solved at the same level of thinking we were at when we created them.

    The penalty for inaccuracy is more work

  3. #3
    Join Date
    Sep 2007
    Longview WA
    This happened to me after lapping the sole. My solution was to attach a thin wooden base.

    Works great.

    "A pessimist sees the difficulty in every opportunity; an optimist sees the opportunity in every difficulty."
    - Sir Winston Churchill (1874-1965)

  4. #4
    I use a Stanley router plane with the nickel body. Whenever I wipe down the sole down with oil I have this problem for months afterwards. Sometimes Simple Green cleans it off sometimes not. I learned the nickel does not rust and try to remember to not oil it like I do all my other tools. The marks to come off easy with my smooth plane

  5. #5
    Join Date
    Jul 2015
    North Virginia
    I had this problem and you guys are right - it cleans off easily with a scraper or smoother. However, after mounting a wooden plate to the bottom of my router plane, I find it very useful - and it gets rid of the dark marks too. I've got three differently shaped plates for a variety of circumstances.

  6. #6
    Join Date
    Jun 2018
    Moscow, Russia
    I've shellaced the sole of mine to prevent marks. Not sure if it applies to yours. Mine is old one with caverns from rust too deep to remove while flattening the sole.

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