[Jewelry making - Article 01261] - Re: [Orchid] Cleaning Phenolic Wheels

[Dave Arens]

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Hi Char,

>     My question is: Is there a reasonable way to clean these wheels &
>     start over with new grits? I searched the archives, read references
>     to Phenolic, but didn't find anything about cleaning. I don't want
>     to score or damage these wheels in the cleaning. 

    I suppose 'reasonableness' is in the eyes of the beholder. 

    Here's a couple of ways that might work. 

    The abrasive grit probably doesn't extend too far into the phenolic,
    so you may be able to sand/grind the outside of each wheel enough to
    get below the depth of the grit. Both ways are apt to be a 'dusty',
    so a respirator of some type will probably be needed 

    The simplest way would be to place some sandpaper on a backing stick
    & hold it against the rotating phenolic wheel. I'd start with a
    coarse grit & finish truing up the wheel with a finer grit. 

    A faster way would be to locate a belt or disc sander or angle
    grinder. Turn the lapidary unit on so the wheels are revolving. Then
    start the sander or grinder & apply it to the rotating phenolic
    wheels. Again if using a sander, start with a coarse grit & finish
    with a fine grit. 

Dave

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