Marine spar varnish is the only finish coat we recommend.
Varnishing an interior door no panels.
Remove any decorative panels to ensure even coverage reinstalling them afterward.
Using vertical strokes lightly apply the first coat of marine varnish to all surfaces.
Spar varnish can be applied over raw wood or complimentary stains as recommended by the manufacturer.
Pour some finish into a clean bucket and dip the bristles about a third of the way into the liquid.
The goal is to remove any flaky varnish and to roughen the surface for a good primer bond.
Soak a new china bristle brush for a minute or two in paint thinner then spin or knock off the excess.
Coat the horizontal rails next and finally the vertical stiles.
Wipe the door off with a clean cloth to remove any debris so that your varnished surface will have a smooth finish.
You can apply varnish with a brush or you can spray it.
Then using a screwdriver unscrew and remove the door handles any hooks or other hardware.
Then roll on a coat of bin or kilz available at home centers for about 8 per quart.
Follow step a for screen doors and exterior doors.
Prepare area remove door hardware lay a tarpaulin or laminated dustsheet on the ground to protect it from any stray varnish.
Wipe off the dust with a brush.
Before applying varnish to your stained door make sure that the stain on the door has completely dried.
Start on the panels then move to the surround ing moldings.
Follow step b for interior doors.
Open a window nearby to provide ventilation.
Whether you have a new interior wooden door that you plan to stain or an existing door that is already stained a protective coat of varnish is needed to complete your project.
In either case several light coats are better than one or two heavy ones.
When varnishing a door start at the top and varnish in stages down to the bottom of the door unless you are varnishing a panelled door in which case varnish the panels individually first from top left to bottom right before varnishing the centre vertical panel the cross rails from top to bottom and then the outer edges.
You must apply marine varnish as described in the next steps or any warranty will be void.