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dark wood bleeding into light wood when sanding (Read 379 times)
 
george jacob reebals
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dark wood bleeding into light wood when sanding
Sep 20th, 2017 at 11:30am
 
Anyone know what you have to do when you are sanding a piece that has blood wood and holly to keep the blood wood red colorfrom bleeding into the white holly. I tried sanding sealer but that disn't work
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Arlin Eastman
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Re: dark wood bleeding into light wood when sanding
Reply #1 - Sep 20th, 2017 at 8:13pm
 
Padauk is the worst that I know of, but from learning and listening I seal the wood first with shellac and then sand.  It will not cross over unless you sand past the shellac and before you do just add more.
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Tom Coghill
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Re: dark wood bleeding into light wood when sanding
Reply #2 - Sep 21st, 2017 at 9:31am
 
I agree with Arlin - seal those open pores that way the fine sanding dust will not have a place to get trapped.
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Ed Weber
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Re: dark wood bleeding into light wood when sanding
Reply #3 - Sep 21st, 2017 at 10:25am
 
If I understand your issue correctly you have white and red bleeding into one another.
You've tried sanding sealer and it didn't work for you.
What type of sealer did you use and how did you apply it?

Without seeing your piece and how the Holly and Redheart are joined, I can't offer much help.
At what sanding grit is this occurring most?
Do you clean between grits?
Do you use a vacuum to try and remove the offending dust?
Many times people (when possible) finish the woods separately before assembly. If this is a segmented type of piece this may not be an option.
If possible you can use a cabinet scraper instead of sanding to avoid cross contamination.
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george jacob reebals
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Re: dark wood bleeding into light wood when sanding
Reply #4 - Sep 22nd, 2017 at 5:32pm
 
Thanks all but I tried all of the suggestions without success.

I don't think it would be a good idea for me to try to use a cabinet scraper on a turning piece of wood.
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Ed Weber
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Re: dark wood bleeding into light wood when sanding
Reply #5 - Sep 22nd, 2017 at 7:44pm
 
george jacob reebals wrote on Sep 22nd, 2017 at 5:32pm:
I don't think it would be a good idea for me to try to use a cabinet scraper on a turning piece of wood.


NO, it's not
As I said, "If possible"

i doubt it makes you feel any better but you are not alone. There are many people who have the same issues with the bleeding. Sorry it didn't work out for you.
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Paul Gilbert
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Re: dark wood bleeding into light wood when sanding
Reply #6 - Oct 29th, 2017 at 7:33pm
 
I have used a cabinet scraper on the exterior of a >12" bowl turning in reverse with good results, but the results were no better than using a freshly ground, swept back bowl gouge in shear scraping mode.
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Bill Rockwood
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Re: dark wood bleeding into light wood when sanding
Reply #7 - Oct 30th, 2017 at 4:47pm
 
What is the size of the piece you are turning?  I've heard over on the penturner's forum that folks that do segmented pens have good luck using thin CA as a sealer to prevent cross contamination, might be worth a shot.
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Don Stephan
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Re: dark wood bleeding into light wood when sanding
Reply #8 - Oct 30th, 2017 at 6:35pm
 
My two cents dewaxed shellac is a much safer choice than CA.
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