Varathane 250141H Water-Based Ultimate Spar Urethane, Quart, Semi-Gloss

Fast-drying, non-yellowing, easy to apply, works over paint, easy to clean! And strong enough to keep the wrong glue working anyway. I CANT FIND THIS ANYWHERE BUT AMAZON and there is no comparable competition anywhere either.Making 3D printed respirator masks? The printer leaves a pourous surface that covid aerosols can easily slip through. This spar urethane fixes that.Loosely-attached strap holders that need to stay in a fixed position? Give them extra attention with this spray even after gluing.I know the directions say to allow the paint to fully dry... But i treated the first coat of urethane as another layer of aerosol paint. My paint was Rustoleum "Hammered" style. I applied urethane 30-120mins after the final paint coat, best results at 90minutes. 4 coats of urethane works great.My masks have threaded filter ports. I could not paint them and have the filter-caps still work. But a couple coats of urethane works great on the threads. I spray *Everywhere* that isnt threaded.I reuse the same painters-tape loops for each same paint color. And another loop for urethane.My only complaint? I NEED A BIGGER CAN. It only lasts for ~12 masks, if Im conservative with it.Other amazon-only products needed:B-style door frame weather seal (BULK IS GOOD) as mask seals. 33ft is lasting me enough for almost 50 masks. Several varieties available on Amazon.Food-safe, clear, Caulk-gun compatible "RTV Silicone" - used to seal the gasket on. Lasts similar to the gaskets.

I had made a series of plywood characters to put in the yard for the holiday season. After carefully priming and painting the surfaces, I planned to brush on Rustoleum Varathane Water-Based Ultimate Spar Urethane from a quart container to seal the cutouts. Imagine my horror when the urethane-dipped brush SMEARED my paint! It was only the black paint, too, which was so odd.To resolve this issue, I bought a spray can of the same product and used it as a base coat first, then I continued with brushing on the urethane without any issues. I did one coat of the spray, then two additional coats brushed on. I could have used only the spray can for all the coats, but I had already invested in the quart container. And if I was spraying on, I probably would have done four coats total.The satin finish is excellent for the outdoor plywood cutouts - note that a matte finish usually looks hazy, and glossy might be too bling for you lol.

it's good

Easy to apply, had to wait for warmer weather to apply.

I saw some good reviews and a couple bad reviews. I took a chance I thought odds where pretty good I wouldn't have trouble. I know how to paint. painted many many things. Both the cans I received I shook really well tried both cans. They both just kinda sprayed, but more spattered, product out, than anything. I tried again next day, shook cans really well again, double after first try. I got same result. arrrrrgh!!!!! wasted a bunch of money. you take your chances with this one.

I use this on wooden screen doors. First coat I mix with 25% distilled water it soaks way in. Then light sand second coat 10% distilled water. Light sand. Final coat full strength. Redo final coat every year or 2.

This varnish is fast drying and it was great that it had water cleanup. Easy to apply and coverage was very good and with the “satin” finish, it was very easy to get a consistent look.

It sprayed out quite foamy so there was a lot of waste. Maybe it was just this particular can but I won’t be ordering this brand again.