A friend showed me this giant bucket he had today that he used to resurface his deck. We decided to try brushing it over some styrofoam and surprisingly it dried and hardened up VERY quickly...It also has a real nice grainy texture to it as well. Would this be safe for my beardie after I put a few layers of sealant? It is much easier than putting multiple layers of grout because it goes on pretty thick and one layer seemed to do the trick.