very good efficacy on shower tiles, tarnished my old blue tiles have found their chips c is spectacular course I have a lot of pulverize the product and polish some time but the result is stunning as it always shines after 1 week and no more trace of water after the showers on stainless steel taps: impeccable, it shines like new more traces of water the next c on the mirrors is incredible from mist after the mirrors remain net showers c on windows is not bad, my kitchen window was dirty after each storm and well after vilela magical system I have seen the difference the water repellent effect is real my window remained clean after rain 2fortes I'm really excited about this product
