How To Varnish Interior Doors
Start by sanding the surface with a random orbital sander and 150 grit paper.
How to varnish interior doors. The goal is to remove any flaky varnish and to roughen the surface for a good primer bond. Tools and materials use. Apply the varnish to your door in long even strokes in the direction of the wood grain.
Use fine sandpaper on the first layer of varnish. You ll see the chemical start to react with the paint and the surface begins to rupture and bubble. You can apply varnish with a brush or you can spray it.
This will also help the next coat to adhere. Work it into the mouldings and corners brushing liberally over the flat areas and leave it for the recommended length of time. Allow each coat to dry and rub down the door between coats with fine sandpaper to remove any pimples of varnish or rough patches.
How to stain and finish a door finishing expert teri masaschi shows us how to properly sand and finish two untreated interior doors. Allow the first coat of varnish to dry overnight. When the first layer of varnish has been applied allow it to dry and then rub the door down with fine sandpaper.
Step 6 allow to dry. In either case several light coats are better than one or two heavy ones. It must be completely dry before you begin sanding.
This will help to create a surface to which the next layer of varnish will adhere more easily but it also helps to remove any rough patches or bubbles. After applying a coat to one side let it dry then coat the other. Wipe off the dust with a brush.