I recommend an oil-based outdoor varnish, especially if your door will be exposed to water. Oil-based varnishes are a bit more of a hassle to work with than water-based and can yellow over time, but they are more durable against the elements. (I used a water-based polyurethane with Satin finish.
The Minwax 47500000 Tung Oil Finish is the first exterior wood door oil on our list. It’s a great finish for already stained front doors. You see, it penetrates old that’s old and dried out, giving it a new vitality. So, you can refinish a front door anytime you want.
Applying General Finishes Outdoor Oil to a Front Door.
Frequently Asked Questions
Does a stained door need polyurethane?
Front doors typically have a polyurethane clear coat over top of the existing stain to protect from weathering. In order to re-stain the front door, this polyurethane coating needs to be completely removed so that the new stain can reach and soak into the wood.
Do I need to seal a stained door?
To protect your door against this and other problems, coat the door with a protective sealer. These sealers must be used in addition to stain, as stain is not designed to offer protection to wood doors. Set the door on a pair of padded sawhorses so you can easily access all areas.
Which is the best finish for exterior door?
Sign up for eletters today and get the latest how-to from Fine Homebuilding, plus special offers. The best clear finish for an exterior door is 3 coats of clear epoxy followed with 2-3 coats of spar varnish.
What kind of oil to use on wood door?
Now, adding depth for an antique-style finish is nothing complicated. You may choose this exterior wood door oil stain to seal the wood surface and prevent it from cracking. Apart from guarding the wood, tung oil keeps any liquids such as alcohol, grease, oil, acid, water, etc. from ruining the surface.