A coating used to prepare a surface for topcoat paint. On our wood products, we use only premium exterior grade oil-based primer. Our primer has a very slow cure time, which means the protective oils will soak deeply into the wood before setting up. This gives our products the absolute best protection available. When you order your porch products pre-primed from our factory, you have the piece of mind that your architectural millwork has the best protection available. And you can install it right away, rather than starting a priming project in your garage!