We have had some internal steel stairs fabricated. They have been installed in our family room and go up to a mezzanine area. They are primed and ready for painting. Someone has suggested bridge paint as used to paint sydney harbour bridge. Has anyone experienced this or have alt solutions. We also looked at electrostatic paint but the cost was out of our league. The traffic won't be excessive so touching up scratches and chips down the track won't be an issue.