Spar Urethane VS. Polyurethane for Bar Top?? - Woodworking Talk
2013年10月3日 · 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 swell and since a polyurethane is a harder finish is more likely to crack because of the weather. Then there are different grades of spar varnish.
Spar Urethane - Minwax vs. Varathane? - Woodworking Talk
2014年11月18日 · 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 content. Hopefully that will work well. I saw the Cabot Spar Varnish, but hadn't heard anything. If you say it works well, maybe I'll give it a try.
Spar Urethane or polyurethane? - Woodworking Talk
2014年6月22日 · 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 outdoors. Consequently it scratches easier than polyurethane that is a harder finish intended to be used indoors.
Durable outdoor finish for cornhole boards - Woodworking Talk
2017年9月26日 · Epoxy could be used as a seal coat for Spar Varnish, but it really doesn't hold up in the sun. It has to be topcoated with something with UV inhibitors. Epoxy seems like a bit of overkill for cornhole boards unless you expect to have underwater tournaments. :smile3: PS, Spar varnish will also pop the grain like you want.
Frustrated first-timer has questions about using spar urethane
2016年10月1日 · 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. With the door lying flat, I applied the first thin coat using a high quality natural brush and with the product diluted to 50% urethane/50% mineral spirits.
Best polyurethane for indoor dining table? - Woodworking Talk
2013年6月13日 · Hi, I am refinishing a formal dining table, new at this, took advice from Anna White and used Minwax stain followed with Helmsman Spar Urethane. I tried natural bristle and foam brushes, the natural bristle kept leaving bristles behind, the foam still left streaks. I sanded down in between coats with 220.
Looking for advice on the best finish for cornhole boards.
2021年4月4日 · The only thing I don't like about polycrylic is that it doesn't have UV protection. If boards are used indoors, then yes it's ok. But the majority of people playing on cornhole boards are outside in the sun. This is where polycrylic fails...polycrylic is for interior use, not exterior. Spar Urethane is the way to go.
Helmsman Spar Urethane not drying - Woodworking Talk
2020年7月19日 · Several weeks ago I finished some small (3"X1") pieces of exotic wood with Minwax Helmsman Spar Urethane spray clear semi-gloss, per the instructions on the can. They hadn't dried in well over a week so I called Minwax and the CS rep determined the product I …
Spar Urethane over water poly - Woodworking Talk
2022年3月24日 · I used a boat finish as I wanted to maximize temp and moisture variations. Man O War is a Spar Urethane and after 5 years still looks brand new and no scratches. I lightly sanded the original base coat which is of an unknown origin. Wiped it with alcohol to strip oils. Then 3 coats Man O War.
Problems with spar urethane - Woodworking Talk
2021年5月12日 · 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 second side, let it dry overnight and sanded it.