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

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

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.

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

Have a look at the pictures. After thoroughly shaking the can, I used this stuff on a finished piece. Fortunately, I was able to wipe it off before it dried. Thinking that maybe I hadn't shaken the can long enough, I shook it for another minute & then tried it on some plain wood flooring pieces. This is the result, white blobs of what is presumably solidified polyurethane all over the wood. Fortunately, I didn't use this on a piece with intricately painted details. The piece I sprayed was a flat color that I was able to repaint to cover the bits of plastic that wouldn't come off of the original piece. This is clearly either a fake product made to look like the real thing or the polyurethane is ridiculously old. This is awful! Thank goodness I tried it on a piece I could easily repair, rather than one of the finely detailed pieces I paint, which is what it was purchased for. I'd be extremely upset if I'd sprayed an elaborate piece of artwork that took weeks to make. Terrible. If anyone has already bought this, I'd highly suggest you try it out on something unimportant before using it on any of your artwork.

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.

I didn’t like the fact that it was not really glossy.