How to apply varnish to real wood flooring?
If using and oil based product, you will want to use a sanding sealer first, then two top coats of the finish product sanding before the last coat. You will apply this with a china bristle brush, or you can use a lambswools applicator in the field. If you are using a waterborne product, then you must apply with a pad for best results. The only other suggestion to give is to not mix products of finish, like brand A with Brand B. If you do use a stain, make sure that it is 100% dry, and again, try to stay brand specific.
