I need some chemical resistant switch labels for yse in a chemical plant. Does anyone have an idea of what to use that can be cleaned or replaced. The machine operators have glue and other chemicals on there glove and it gets all over the legend plates. Is there some kind of legend plate made that would have disposable plastic covers? This is in an Class 1 Div 1 location so we can not take the switches out to replace the legend plates all the time. thanks for the help