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: