Following the application on skin shoes and returned after several weeks of use thereof in the pouring rain, I can say that it is a very effective product for I have found no trace of moisture neither dirt.
The application must be done in a well ventilated area or outside because of the strong smell, but not unpleasant, when spraying.
No color change, however small, after final drying of the product.
Very satisfied with the quality of the waterproofing.
Kind regards,
Eric Manegat