Plastic Based Labels These labels are produced on a petroleum-based plastic, which, unlike paper, renders these labels durable and long-lasting, completely unaffected by water, humidity and sunlight. One type is unrecyclable, while the other dissolves slowly over time naturally. It is possible to use this material in all sectors. Whitematte, Glosewhite, Silvermatte, Polyethylene Opaque, Polyethylene Transparent, Polypropylene Opaque, Polypropylene Transparent are the most commonly known varieties of this material, which is used for shampoo labels, license plates and inventory labels. Thermal ribbon-printing is the method employed in printing on this stock.