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stacked oak air stains3/28
Hello all !,
I've had a few white oak veneered table tops stacked in my shop for a few months with 1" styrofoam strips in between the tops. I just got into unstacking these tops and have noticed the oak has darkened in the areas that the styrofoam was not touching. The veneer is 1/32" thick and I am unable to sand past the discoloration. Has anyone ever expererienced this? Is there anything to try? any feedback is appreciated ! thank you
I think what you are seeing is oxidation. The exposed Oak (or any wood) darkens as a result of oxidization.
I would think you cab sand past it with a flat block, working with hand power.
One might also suggest the panels be left exposed to oxidize to match. I suspect there may still be a shadow.
If you have enough time then I'd do this experiment.
I'd restack some veneer test squares until they did the same thing. Then I'd try going over them with a bleaching treatment such as oxalic acid.
Or if the tops are trash unless they are fixed you might try the oxalic acid bleaching on one and perhaps you'll get lucky with the results.
I agree that it is probably oxidation of the oak causing the darkening. If it were solid wood you could sand it out. With thin veneer though it's not surprising to see that it wouldn't sand out.