Hi we are in the process of installing slate tiles in an outdoor walkway. The installer bought 511 Impregnator. He said the slate needs 1 coat on the bad side that will face the ground and 3 coats on the good side. I love the way it looks when wet but I am not as attracted to it when it dries. We have only applied the 511 Impregnator on the bad side, and have not applied it on the good side yet. What should I do as I have read many horror stories? Should we apply the 511 Impregnator on the good side then get a wet sealer and apply over it? Or if I want the wet look should i not apply the 511 Impregnator and only apply a wet sealer? I am confused on this process can anyone please help. I live in Northern California and only have Home Depot to get products, does anyone know of a good product to get a semi gloss look on outdoor slate that will be walked on? Thanks!!