Brady assigns a material code for each of the materials used in their product construction. This Brady out of service sign is constructed using fiberglass reinforced polyester which is the B-120 Brady Material Code. This SKU is written in English with the following text: OUT OF SERVICE DO NOT USE. Some signs support inside use only, while others can be used indoors or out. This product has the flexibility to be used both indoor or outside. There are a variety of standards that signs may conform...