As a hesitant buyer in the Industrial and Scientific field i was anticipating promising results, but this product completely missed the mark! As a result of using this product, I found that it didn't last long enough to make a dent even in the most superficial surfaces. The only small pro of this product is its initial ease of use. However, it`s not worth the investment in the long run, as the cons heavily outweigh the pros. Save yourself time and money and look for a more dependable option..