Remove old paint or varnish.
Varnishing old wooden garage doors.
Scrape any worn varnish off photo 2 then sand with 120 or 150 grit sandpaper.
Staining the door is appropriate if you ve removed an old finish or you re varnishing a new unfinished door and it gives extra ultraviolet protection to an exterior door that gets sun.
The easiest way to do this is to take a piece of the trim to a paint store to have it matched photo 1.
Any old finish that is cracked or peeling should be removed and smoothed before applying the new finish.
Once it has completely dried sand the entire door lightly with 120 grit sandpaper.
Before applying varnish to your stained door make sure that the stain on the door has completely dried.
If your wood door has an old paint finish or other kind of varnish that you want to remove there are a couple of options.
How to strip old paint and varnish duration.
If you want to keep the wood grain from showing through the paint trowel a thin layer of spackling compound over the entire surface ready patch is one brand available at home centers for 6 for 1 qt.
Or you can use chemical strippers to remove the layers of paint.
Wait for the compound to dry.
Wipe the dust from the door with a slightly damp rag.
A newly refinished garage door will add richness and character to the front of your hom.
You can sand the old varnish off a very time consuming task.
There s no sense in going any finer dee says.
Sand the wood again with 100 grit paper then 120 grit.
With the door resting on padded sawhorses use a random orbit sander with 80 grit paper to quickly remove what remains of the old varnish and sun baked flakes of wood.
Step 4 mix your varnish it is important that you stir your varnish thoroughly before applying it.
Ron hazelton 316 970 views.
Wood garage doors are a specialty item and should be treated as such.
Use wood cleaner to clean all dirt grime oils and bird poo off the door.
It isn t always necessary to sand the wood for example you leave exterior rough sawn trim unsanded.
Faux wood garage door the right way duration.
Gerry crumbley 801 631 views.
Sand out imperfections in the wood with 100 or 120 grit sandpaper and a palm sander.