Hello – I have a black walnut butcher block counter top that my [grown and should know better] daughter accidentally caught on fire. Initially sanded it down using 80 grit up to 2000 and coated with several applications of mineral oil. After a few days there were whitish cloudy splotched across the surface. I though the problem may have been using too high a grit of sand paper and/or wax residue in the grain. I cleaned the surface with mineral spirits a few times then sanded with 80 up to 220 grit. I wiped with a damp sponge and let it dry for a few days then did two applications of Odies Oil with 3 days in between. Now he whitish spots are back and the grain seems really open and it looks dull. I’m at my wits end. Any suggestions what I’ve done wrong and how to correct it?
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White patches occurs when the wood is wet under the finish, usually under varnish, is it possible that there is standing water under the wood layer or that the water used to extinguish the fire has not evaporated prior to finishing the piece ?
The fire was in about a 12” square and was extinguished with a wet towel. I did, however, wipe it down with a wet rag after sanding. If it is due to moisture in the wood, what do I do at this point since I’ve put 2 coats of oil over it?