When you use the term “varnish,” you’re probably referring to conversion varnish if you spray finishes. If you brush or wipe, you’re probably referring to one of the many varnishes sold at home centers and paint stores. Conversion varnish, also called “catalyzed varnish,” dries fast, so it almost has to be sprayed.Click to see full answer. Similarly, it is asked, what kind of brush is best for varnish?There are a number of high quality brushes that can be used for brushing on clear topcoats. The best for shellac and lacquers are natural hair (like badger) or china bristle brushes. While any of these brushes will do a great job when applying varnish, there is a much less expensive alternative. A polyfoam brush.Also Know, what is a conversion varnish? Conversion varnish is lacquer which consists of a high-end solid two-part post-catalyzed application process. What this means is that at the time of application a hardening agent must be mixed in with the lacquer to provide the additional durability. Conversion varnish is chemical-cured and consists of 40-60% solids. Keeping this in consideration, is conversion varnish toxic? Woodworkers generally are exposed to chemicals through inhalation and contact with the skin. Both nitrocellulose topcoats (lacquers) and acid-catalyzed coatings (conversion varnishes) contain solvents that are toxic to humans.How do you get a smooth finish on wood with varnish? Sand the bare wood as needed to smooth it and remove the old finish. Fill the grain with an oil-or water-based wood grain filler. Spray one coat of lacquer. Apply one more coat of varnish. Allow the varnish or lacquer to dry for one day, then level-sand with 400-grit sandpaper to remove bumps and imperfections.
