Oxalic acid | Wood degrader | Silver cleaner
Oxalic acid is completely biodegradable and decomposes to water, carbon dioxide and carbon monoxide via the formation of formic acid. It is classified in the lowest water hazard level WGK1 and suitable for cleaning all untreated or oiled wooden surfaces.
The cleaning solution must not come into contact with galvanized components, as this will damage the galvanization. Contact of the cleaning solution with painted surfaces will cause fading.
Oxalic acid occurs naturally, for example, in rhubarb, sorrel or spinach. It is completely biodegradable and It removes the gray haze from wood and causes it to brighten. It dissolves rust and cleans tarnished silver.
Observe the safety instructions on the packaging. Keep oxalic acid out of the reach of children. If swallowed or in case of contact with eyes, rinse immediately and seek medical attention.
Application as a terrace cleaner
Remove coarse dirt from the wood and pre-wet well. Put on rubber gloves and safety glasses. Dissolve the oxalic acid in water at a ratio of 1 to 20 (50 grams per liter). Apply the cleaning solution, e.g. with a mop, to the wet wood and allow to act for approx. 15 minutes.
Then rub with a scrubber or hand brush. Rinse the wood with plenty of water.
Caution: Galvanizing is damaged or destroyed by oxalic acid!
Application as silver cleaner
Dissolve the oxalic acid in water in a ratio of 1 to 20 (50 grams per liter) and place the tarnished silver in the solution. After about 15 minutes, wash off the oxalic acid solution.