Previously Painted Doors
- Previously painted steel doors often create an adhesion challenge when it's time to repaint them.
- Check the door for peeling or cracking paint. If paint is loose, scrape it off and feather the edges of the remaining paint. Prime the metal surface with a rust-resistant latex or oil-based primer.
- Typically, paints with some degree of glossiness are used on steel doors; in order to create adhesion for the new top coat of paint, you'll need to lightly sand the surface first with fine grit sandpaper.
- After sanding the surface and cleaning off the sanding dust, apply the top coat using a latex or
oil-based enamel paint.
- Enamel paints generally are more resilient in terms of stain and scrub resistance than are conventional wall paints; therefore, they tend to be more durable for surfaces that experience a lot of wear and tear.
New Steel Doors
- Most new steel doors come "pre-primed" from the factory, which the manufacturer typically does in order to protect the door during the shipping process. This primer does not perform as well as a quality primer coat and therefore should be covered before you apply a top coat of paint. Valspar recommends that all steel doors be first primed with a quality rust-resistant latex or oil-based primer.
- After the primer has thoroughly dried, apply one or two coats of a top quality acrylic latex semi-gloss or a gloss enamel.