Don, the male that does glass etching and I feel other items, has explained that it is determined by the how thick the "skin" is and the sort of and depth from the etching.You could "scratch the floor", even so the further the more of a alter which the 1 https://slidingshowerdoors60246.newbigblog.com/40568399/5-easy-facts-about-bathroom-glass-shower-doors-described