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Turning 'multicolored' wood

T

tadpinkerton

Joined
Aug 29, 2007
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I'm sure someone has encountered and solved this problem before: I'm turning walnut with both the dark heartwood and white sapwood as part of the bowls. As soon as I try to sand the turning, the dark color is smeared into the white in an unpredictable and ugly pattern. What do folks do to prevent this?

Thanks, Tad
 
You can't prevent it, but if it is fairly dry, then you should be able to blow out the dust that is discoloring it.

Wet wood would be different because the colored "water" would be soaking into the sap wood.
 
put a layer of sanding sealer on before you sand. This help keep the dust from sticking in the pores of the white wood. Vacuum or wipe the dust out and put another layer of sealer on. The go to the next grit and do the same. That's a worse case scenario that I had to do when sanding Padauk next to Holly on a segmented piece.
 
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