Paint and Coatings are a universe of options and complexities. Fortunately for the steel fabricator the scope is limited by the requirements. Priming forms the basis of the coating system and often that is the only coat the steel will receive. Most of our customers prime steel in red or gray. Some of the miscellaneous and ornamental fabricators choose black. A few, for marketing purposes, choose their own color, such as green or blue to stand out on a job-site so anyone seeing the steel knows it was their work. Regardless of the color the basic primer has one function. Prohibit rust until the structure is enclosed.