My latest edition of JOBSITE magazine lists a product by Muralo Paints that claims it is a waterbourne acrylic-urethane clear coating. It has sunscreens and is an interior -exterior product. I have always said that if I could find a product that was water based and gave a wet look finish that prevented wood from graying I would make a killing. I want to try it with sand added as a deck coating. I'm aware of the drawbacks of polyurethane on deck floors but it may be ok for rails. I like to research new ideas and try them out on my deck before I unleash them on my customers. I have e-mailed the co. to try some of the product . I was wondering if anyone here has tried this product.