 So my thoughts are either a clear sealer, a real good clear sealer, or I'm kind of interested in this product, this Deitch coating from Canada, I believe it is. And I've done a little research, Gary, relative to this. There's one you trowel on. And my concern is the vertical surfaces. In other words, the sides of the steps, it would be a vertical surface. The rises would be a vertical surface. Right.