Although wood varnish is supposed to help the wood finish, there are a few disadvantages to using it. The disadvantages of wood varnish include drying too slowly, being difficult to clean up, susceptibility to dust buildup, discoloration over time, incompatibility with water-based products or lacquer and issues repairing or stripping it, according to Lee’s Wood Projects.
Although there are disadvantages to wood varnish and its application, there are significant advantages as well. The application of wood varnish aids resistance to heat, chemicals, water, and wear and tear. It also helps your wood last longer and keeps it in good condition.
There are a few different wood varnish products available on the market. They include Minwax Spar Varnish-Formby’s Tung Oil Varnish, Heirloom Clear Varnish, Wickers Varnish, Man O’ War Marine Spar Varnish and System Three Spar Urethane Gloss.
Wood varnish is made from resins, boiled linseed oil and certain chemicals, according to Lee’s Wood Projects. When applied to wood, it should be allowed to dry for up to 24 hours and allowed to cure for at least one week.