Like everyone has said, it is mainly to brighten things for easy viewing of your equipment. The best paint to use is an oil base. It is totally waterproof and will wipe any salt scum off with ease. The best paint to use is Benjamin Moore Satin Impervo. Use the alkyd undercoater for your primer. I cut my finish coat with a couple splashes of mineral spirits, and it flows like a dream. The finish looks like it's sprayed on when it dries, and your hand will glide over it like its glass after it dries. I've used it on my stand, and trim and doors in my home. It's by far the best paint money can by.