• July 2025 Turning Challenge: Turn a Multi-axis Weed Pot! (click here for details)
  • Congratulations to Kent Reisdorph for "Sugarberry Bowl" being selected as Turning of the Week for July 14, 2025 (click here for details)
  • Welcome new registering member. Your username must be your real First and Last name (for example: John Doe). "Screen names" and "handles" are not allowed and your registration will be deleted if you don't use your real name. Also, do not use all caps nor all lower case.

alcohol bleaching?

Joined
Apr 3, 2007
Messages
60
Likes
0
Location
Elgin, IL
A couple days ago I rough-turned a sycamore blank that had wonderful red streaks in it and then put it in an alcohol bath to speed drying. When I took the rough bowl out of the alcohol and re-turned it, the color was gone. Has anyone else had this experience, or did I hallucinate the vivid reds in the original blank? (Note: it was denatured alcohol, and I didn't even sniff it. Much.)
 
Doubt the alcohol had anything to do with it. Bleaching is normally an oxidation process, so my bet would be on the atmosphere, not hydroxl radicals.

Either that, or the red was some organic dye more soluble in the less polar alcohol, in which case you should discover it again below the surface of the wood. A day in a soak isn't going to get much penetration even when you've thrown all that water away centrifugally to make room for air. Won't make it dry any faster or safer, either.
 
Back
Top