Apply Lithofin Wexa diluted up to 1:10 with water, with a brush or white pad and allow it to work for 5 to 20 minutes (depending on the stubbornness of the dirt deposit).
Do not allow the product to dry, brush occasionally.
At the end of the working time, add water and brush.
Remove the product from the surface with plenty of water and rinse well.
In very stubborn cases, repeat this process with longer working times and brushing.
In case of light deposits, Lithofin Wexa can be diluted up to 1:20 with water.
NB: solvent sensitive surfaces, such as rubber, plastics, newly varnished surfaces, etc. may be attacked by the product.
Always test the product in an inconspicuous area.