Thread: wood repair
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Old 04-29-2017, 01:32 PM   #6
sdowney717
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City: Seaford Va on Poquoson River, VA
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Try mixing up some oxalic acid, soak the area, maybe cover with some plastic to let it stay wet longer as it only works when wet.

Oxalic acid does brighten wood, depending on what stained it. Most certainly tannins and iron staining, less so for fungus, but worth the effort.
You may have to scrape the finish coating off then use oxalic acid for it to get good exposure to the wood.
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