These black marks are called Metallic Discoloration or Iron Stain and are caused by elemental iron reacting with phenolic chemicals in the wood to form black iron tannates (common black ink pigment). Iron Stain requires the presence of iron, wood and water and will not occur if one of these elements is absent.
Likewise, people ask, how do you remove black oxidation from wood?
How to make the magic happen:
- STEP 1: Get a cleaner with oxalic acid. …
- STEP 2: Mix the Bar Keepers Friend powder with enough water to make a spreadable paste.
- STEP 3: Spread the paste directly onto the stained areas with toothbrush.
- STEP 4: Let dry for 10-15 minutes; wipe off with damp towel.
- STEP 5: BEHOLD THE MAGIC.
Correspondingly, are black stains on wood mold? Irregular stains may be an indication of mold growth. Some molds stain the surface on which the mold is growing, which leaves a black or blue-black colored stain. Mold growth will cause further damage to the material it is growing on and can ruin wood integrity.
Moreover, how do you get black marks off wooden worktops?
Brush or blot bleach onto the stained area. Although bleach products are not normally recommended on your finished worktop, they work well on stains. You may need to do this repeatedly to remove the stain. If needs be, you can leave the bleach soaking into the stain overnight.
