After proper drying time for the stain or if wood is being left natural apply 1 coat of waterproof exterior alkyd varnish to the interior and exterior surfaces as well as all edges.
How to seal latex paint on wood garage door.
When the sanding is done use a vacuum or brush to remove the particles that have been sanded off.
Seal the exterior paint by applying an acrylic based primer.
Avoid this by sanding every square inch of the garage door.
It is also possible to cover a latex paint with oil based polyurethane.
Never however try a water based polyurethane on top of the oil paint.
The best way to avoid blocking is to avoid latex paints for 1 surfaces that contact each other and 2 surfaces you put things on such as bookshelves.
I painted a garage door with an exterior latex paint over 5 years ago and in the warm weather i still hear the sound of the tacky paint breaking contact as the door goes up.
This creates a seal between the wood or vinyl and the paint which reduces oxidation.
Use a latex based paint to achieve the best results on a garage door.
If possible paint in a well ventilated area or use a fan to circulate the air.
Apply the stain to the interior and exterior surfaces as well as all edges following stain manufacturer s label directions.
The best sealer to use for giving extra protection to a painted door is either an oil based or a water based polyurethane sealer.
Failure to sand the door will lead to the new paint peeling off in short order.
Fill holes and repair imperfections with sandable filler or spackle.
Allow the primer to dry for 24 hours.
Wood garage door paint removal with dry glass.
For best results use an oil based sealer on oil paint and the same for latex.