Can I use Sandtex undercoat primer to my fiberglass garage door and a exterior gloss finish afterwards?
You can use a Latex Exterior Grade Primer… use a Sherwin Williams Or Behr Product for best results… then topcoat with a Gloss or Semi Gloss Exterior Acrylic Paint (same Brands)… Good Luck!
Crowder Painting – For all of your interior & exterior painting needs in the Colorado Springs area.