So I really wanted it to work and look good but it doesn't. Every corner will look terrible. Now there's a way to make anything that isn't a perfectly straight line. It just doesn't look good. If you think this is a clean alternative to applying a coat of grout or sealer, I promise you it isn't. It looks awful and doesn't even seal the surface completely allowing water to get underneath. All in all a waste of time and money. I picked it up the same day to apply the limestone. Save your money and just caulk it.