I use it on my granite lavatory countertop, and it requires re-applying every year. I know when it's time, because the water starts penetrating again, and dark patches form on the granite where the water penetrated. I allow it to dry over three days as advised, and still this is the extent of it's duration.
I have to say that the company does itself no good service by posting a video with the guy wearing an earpiece headset. Seriously, is he going to take a call during this? Lack of thought on the company side to release this is is ridiculous.
I think he is at a trade show. You would think company would send someone who can present the product with more interest and enthusiasm..... major fail
