How do you get tannin off wood?
Furthermore, how do you remove tannins from wood?
One thing you can do to remove the tannins from your mopani wood is to boil it. I boiled the two pieces of driftwood in my 10g that I boiled for close to an hour (until the tannin leach slowed down). It does still leach some tannin, but at a much slower pace, and not enough to affect my tank.
Likewise, people ask, how do you get dark stains out of wood?
Soak cloth in some hydrogen peroxide and dab onto all of the dark spots. Let dry overnight and be amazed! Repeat as needed. For larger, darker stains, you can leave a hydrogen peroxide soaked towel over the area for a few hours and then remove and let dry.
How to Remove Iron Stains from Wood
- Strip the stained area of the wood of any finish or paint, using chemical remover and an old rag.
- Dip a sponge in lemon juice and sprinkle salt on the tip.
- Mix 1 gallon of warm water with 1 tsp.
- Dip your sponge in the oxalic acid mixture and scrub the stain.