Oct 3, 2013 · The biggest difference between a polyurethane and a spar is the spar is made more elastic to withstand the weather extremes of being outdoors. Even the humidity in the air will make wood …

Nov 18, 2014 · After doing some research, I'm staying away from Minwax and Spar Urethane in general - going with Marine Spar Varnish. I got the "Man 'O War" marine spar varnish because of the tung oil …

Jun 22, 2014 · The only time you use a spar varnish is when it's constantly exposed to water or in the sun a lot. The finish is made more elastic to expand and contract with weather extremes, mostly …

Jan 5, 2016 · A spar varnish is similar to polyurethane with the exception is it's formulated to be more flexible to deal with the temperature extremes of being outdoors. You would be better off with a …

Mar 24, 2022 · You could try a water based spar varnish however more than likely the water based finish needs to be stripped off. Then you could put any finish you desire on it.

Sep 29, 2016 · I am using Varathane Spar Urethane, Oil-Based, in Semi-Gloss (I chose a spar urethane because I’ll also be refinishing the outer side of the door). I sanded the indoor-side with a fine grit. …

May 12, 2021 · I'm finishing an exterior door with spar urethane. The door is for, and calls for 3-5 coats with light sanding between coats. One side (the outside) of the door went fine. I have one coat on the …

Jun 13, 2013 · Helmsman spar varnish is a very poor finish for a dining room table. The finish is intended to be used on exterior wood like a front door. It's formulated to be softer so it can expand and …

Jun 26, 2014 · Epoxy is sometimes used on marine applications but it is then over-coated with a non-poly oil based marine varnish to protect the epoxy. You best choice as a finish is to use a non-poly …

Jan 29, 2018 · The Arm-R-Seal is probably longer lasting. It isn't as hard of a finish as polyurethane so would be better suited to deal with normal wood movement. The Arm-R-Seal is also probably more …