When considering using Color Coding Labels for certain applications, be sure you are planning to put them on compatible surfaces. Our removable labels stick well to glass and ceramic surfaces. Sometimes they stick a little too well, because the surface is so smooth, it creates a fantastic sealing surface for the glue to stick to. It’s usually not a big deal to take the label off, and sometimes there might be a little bit of glue left on the smooth surface that you have to clean off. Also, if the label is left on for say, several years, all bets are off on remove-ability. They labels might adhere even more to the surface, or they might fall of depending on the surface. When applying the color coding label to any surface, make sure the surface is dry and clean and free of dust and dirt. As always, extreme environments are not good for labels. Extreme environments include extreme cold, extreme heat, extended exposure to sunlight, high humidity, or exposure to rain or steam.