Removing black stain from walnut - Woodworking Talk - Woodworkers Forum
 
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post #1 of 6 Old 09-15-2010, 12:01 PM Thread Starter
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Removing black stain from walnut

I am refinishing a walnut (probably American walnut) gunstock from a repro Charleville musket. There are some black stains next to where the butt plate was installed. Any tips on how to remove these stains? Im assuming that the stains are iron/rust. Thanks for any suggestions!!
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post #2 of 6 Old 09-16-2010, 08:25 AM
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Try oxalic acid. It is a wood bleach, but a bit more gentle than liquid bleach. You may not be able to get the stains out, but they add to the look of an old gun, even if it is a repro.
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post #3 of 6 Old 02-22-2013, 07:45 PM
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Will denatured alcohol work?
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post #4 of 6 Old 02-23-2013, 08:38 AM
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oxalic acid , aka deck brightner, will kill the metal/rust stain
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post #5 of 6 Old 02-25-2013, 09:38 AM
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Oxalic acid is the right choice. It is not two part bleach. Mix the crystals in hot water and apply. Add crystals to water until they will no longer dissolve. Remember to check for left over crystals after it has dried. If they are there, then wipe with a slightly damp rag to remove them.
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post #6 of 6 Old 02-25-2013, 11:25 AM
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Oxalic acid it the thing to use. Oxalic acid bleach is used to remove or lighten metallic oxide caused black areas near metal items in wood or other mineral caused stains. Standard household chlorine bleach is used to remove dye stain color and two part A/B bleach is used to remove the natural color of wood.

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