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Thread: accidental ebonising ??
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24th November 2018, 10:30 PM #1Senior Member
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accidental ebonising ??
turned a clutch of small bowls from a small section of camphor log...decided to wet sand using food safe mineral oil and wet and dry sandpaper...and the light/bland sections of the wood turned very dark. It looks like the wet sanding has ebonised these sections but i am not sure if this is what has happened...anyone experienced this?
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25th November 2018, 11:34 AM #2GOLD MEMBER
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I don't have a clue as to what happened, but the bowls look great. Very much like American Black Walnut. Iron oxide, rust, will make Oak turn black.
So much timber, so little time.
Paul
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25th November 2018, 01:03 PM #3Senior Member
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Cheers Paul....i have tried ebonising before and have used a home made solution from fines from around the grinder from sharpening tools...but not this time....i was just trying to sand without the dust..unexpected result. The darkness has mellowed a little, but not much.
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25th November 2018, 08:52 PM #4
Not quite sure what happened either but perhaps dust from the dark part has filled the pores in the grain from the lighter part due to the oil sanding.
Regards
John
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25th November 2018, 11:09 PM #5
It's also possible the "bland" part was faster growth, with more open grain/pores, consequently sucking up more of the oil.
- Andy Mc
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26th November 2018, 04:59 AM #6GOLD MEMBER
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I use Tung Oil for almost everything and have been disappointed when some soft lighter woods have turned dark. Probably becaause of sucking up more oil.
So much timber, so little time.
Paul
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26th November 2018, 09:32 AM #7.
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Bowls look great but i doesn't look like ebonizing to me, ebonizing is much darker than what's showing on the bowls. I'd say it's just the interaction of the oil with that particular timber as oils are notorious for darkening most timbers. If you want to retain lighter colours you could try using a wax instead of an oil.
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26th November 2018, 07:39 PM #8Senior Member
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Thanks Bob. Not too worried about the darkening of the wood, just wan to understand it so I can predict it a bit better...ta
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