Michael, This is the second time that I have ordered your product. You are the epitome of customer service which is very difficult to find these days. The first time that I used Groutshields was for the wrong color grout. This time, it will be for new grout. I couldn’t believe how easy it was to apply and the durability is unbelievable. I, perhaps will be moving to a different house in the near future and I have your information in my “important papers” file, so that I will always have it on hand for my use and to recommend to anyone that has a grout problem. I love your product! It is so unlike the products that are sold by the building supply stores. Not only can the color be changed, but it is the most amazing grout sealer. Thank you, Thank you, Thank you so much!