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You are here: Home Help Furniture Tips Removing Dark Stains From Wood

Removing Dark Stains From Wood

To remove darks rings, stains or gray oxidation, you will need to use some oxalic acid crystals . It is the main ingredient in the so called deck brighteners. To use them, you have to mix them with warm water until you reach a saturated solution meaning it won't dissolve anymore. Only mix the amount you need. You will need to apply it with a synthetic brush giving the entire surface a good wet coat (not just the stain) . The wood will need to be bare and lightly sanded prior to this step. Leave the acid on until it dries or until the stain has vanished. Follow that with wash of water to removed the residue. The grain will be raised after it dries, so you will need to sand it smooth before finishing. Make sure you use a particle mask when sanding because the crystals will make you sneeze if you inhale them. Do it outdoors if possible.

To remove darks rings, stains or gray oxidation, you will need to use some oxalic acid crystals . It is the main ingredient in the so called deck brighteners. To use them, you have to mix them with warm water until you reach a saturated solution meaning it won't dissolve anymore. Only mix the amount you need. You will need to apply it with a synthetic brush giving the entire surface a good wet coat (not just the stain) . The wood will need to be bare and lightly sanded prior to this step. Leave the acid on until it dries or until the stain has vanished. Follow that with wash of water to removed the residue. The grain will be raised after it dries, so you will need to sand it smooth before finishing. Make sure you use a particle mask when sanding because the crystals will make you sneeze if you inhale them. Do it outdoors if possible.

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