How To Floor Varnish
Start at one end of the room and sand with the grain.
How to floor varnish. If you want to change or improve the floor color apply a stain. Work one manageable area at a time such as four square feet. When making the strokes try to follow the wood grain. This will ensure that the varnish looks natural.
If your old varnish is flaking off use a floor sander to sand back to the bare wood. Let the dust settle vacuum it up and then wipe down your floor with white spirit. Fill in any gaps in the floorboards if you need to or want to. Depending on the condition of the floor you may need to start sanding with a coarser sandpaper.
How to prepare varnished floors lightly sand your floor with 120 grit sandpaper. Apply in sections which are no larger than 4 to 5 square feet. Instructions and help on how to varnish your wooden floor. Use less coarse sandpaper usually around a 120 to 150 grit abrasive to get a lovely smooth finish.
Apply the stain with a foam applicator pad in the direction of the wood grain. Choose an interior wood stain based on the color you desire and the type of hardwood flooring you have.