The primary use of oxalic acid is to remove mineral stains from wood and some other materials. Water stains on wood, particularly woods high in tannin. Oxalic acid does a good job removing black metal stains.
1 - 1 of 1 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
A forum community dedicated to professional woodworkers and enthusiasts. Come join the discussion about shop safety, wood, carpentry, lumber, finishing, tools, machinery, woodworking related topics, styles, scales, reviews, accessories, classifieds, and more!