Gray (Exterior) Moody stain colors aren’t just for interiors in 2021. ... The General Finishes oil-based gel stain in white is one of the top-selling stains on Amazon.

Over the gel stain, the company recommends Minwax Helmsman Spar Urethane, which comes in an oil-based formula or in a water-based formula. Between the two coats, lightly hand-sand with 320-grit ...

You can apply exterior acrylics over gel stain; however, you must prime the surface first. Use a roller to apply at least two coats of exterior acrylic primer to the door.

A: Finishing a fiberglass door, whether you use a kit like Therma-Tru’s or buy the finishing materials on your own, is a two-step process: First you add color via an oil-based gel stain, then ...