24+ Spar Varnish Vs Polyurethane
Pictures. Spar is a softer, more flexible finish. Is the spar polyurethane any better in this application?
The amount of oil in spar urethane makes it softer. Spar is a softer, more flexible finish. Discovering the difference between varnish vs polyurethane.
Its purpose is providing a protective barrier against air moisture and water exposure that would otherwise, in time, damage wood.
Spar varnish is a wood finishing varnish. Spar varnish was originally developed for coating the spars of sailing ships. Polyurethane, whether it's an outdoor or indoor formula, takes a little finesse to apply without bubbles or brush strokes. I believe you've made out a few.