40 mil polystyrene plastic, the UV and scratch resistant signs will last you a lifetime.
Expertly engineered to withstand the harshest conditions, this heavy-duty indoor/outdoor danger signage can be installed in minutes and used for a lifetime in any workplace.â¢VISIBLE IN ANY ENVIRONMENT: Designed with fade-proof ink, bold smart fonts, and vivid colors, these scratch-resistant pre-finished white safety signs are engineered for clear visibility in poor lighting and severe weather conditions. Aluminum signs are durable, strong, and able to stand up to tough weather conditions. X 12 in.