July 13, 2015

How to use Oxalic Acid

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In order to use oxalic acid, there’s a simple process you’ll need to follow. We’ve detailed it below & included a video to make the process as easy as possible.

Oxalic acid is the perfect chemical for removing stains from timber. It’s made from rhubarb leaves & comes in a crystal form.

Oxalic acid is used for:

  • Removal of tannin stains in oak or timber
  • Removal of iron stains
  • Boat cleaning
  • Bleaching wood
  • Removing brick stains
  • Furniture restoration
  • Bee keeping

You will need:

  • A container
  • A brush
  • Scrubbing brush
  • Safety gloves
  • A mask

Avoid contact with the skin & eyes.

The process is extremely simple. We have split it out into 4 steps. It can be completed very simply in a matter of minutes:

  1. Mix one part oxalic acid with 6 parts warm water
  2. Apply a liberal amount of the mixture to the timber using a brush or sprayer
  3. Use the scrubbing brush to scrub the stains
  4. Allow to dry – the timber will dry without the stains

To make it easy, we have included our video below detailing these steps:

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