So my roommates and I poured some curbs in our basement this winter, and we just now got them painted and put a tiny amount of lacquer on them. We dropped them off at the spot yesterday, and they grinded great for the first 3 or 4 slappies, but then started to get real crusty. We put some wax on them to try and get them going, but now we are wondering if it's too late to put another coat of lacquer on them. Can you lacquer it if it's been waxed?