For permanent marking of products being used indoors and outdoors, choose Avery Heavyduty Silver labels.These silver laser labels are significantly more durable than conventional paper labels due to their strong adhesion and their resistance to water, oil, dirt, UV rays and extreme temperatures (-40C to + 150C). Ideal for labeling equipment and property such as IT or electronic devices, machines, tools and more.Ideal for applying to metal, plastic, painted surface, fabric, polycarbonate and glass, both indoors and outside.