varnish vs polyurethane on boats
Yacht or spar varnish. this is purposely designed for boat use and its objective is to ward off water from penetrating into the wood. it is good for use on outside timber; however, this is not recommended for surfaces that people commonly walk on. alkyd varnish. this refers to modified vegetable or natural oil. polyurethane varnish. this is. Varnish vs. polyurethane november 29, 2016 by jim 1 comment here is a great article tinboats member johnny put together to highlight the difference between varnish vs. polyurethane.. The only other benefit of varnish vs. polyurethane is the varnish will be easier to maintain over the years. where polyurethane will fail in large unsightly chunks of plastic that peel off the wood and drift out to sea, adding to the global plastic pollution problem, varnish will chip off in small portions..
varnish vs polyurethane on boats Polyurethane also dries slowly, therefore, making the work duration longer. spar urethane is considered to be much easier to apply than polyurethane. it is applied in the same manner like polyurethane; however, it tends to dry faster and doesn't require a lot of layers and application to achieve a shiny finish.. Just as varnish is oil-based paint without pigment, two-part wood finishes are essentially polymer topside paints without pigment. the life of a clear two-part linear polyurethane finish might be measured in years rather than months. and as an added bonus, two-part urethanes properly applied are even glossier than spar varnish..
