Carbocoat 115 VOC is a fast drying, low VOC industrial maintenance, lead and chromate free, shop and field primer. It is especially designed for architectural ferrous metal or exposed structural steel, and is best applied by spray only. Carbocoat 115 VOC can be top coated with acrylics, alkyds or single package polyurethane finishes. It is often used as a construction primer for structural steel that will eventually reside in interior spaces.