Rust-Oleum Industrial Choice OSHA Safety Purple Field Marking Paint 12 oz is the perfect choice for industrial outdoor marking purposes. It is an oil-based paint that is easy to apply with a brush or roller and provides a durable, weather-resistant finish. This paint has been tested and approved by the Occupational Safety and Health Administration (OSHA) for use in marking industrial facilities. It is a fast-drying paint that is perfect for marking roads, parking lots, and other surfaces.