Flow-coat, non-yellowing gloss finish?

[helix_3]

I have a large epoxy sculpture that needs a gloss finish.

In the past I have used Rustoleum Triple Thick Glaze. This is a pretty good solution, but it takes a decent amount effort to apply the multiple coats. It's also error-prone: dust, bad weather, overly heavy coats, etc can all ruin the finish.

I would like to just flow a single clear coat and call it a day. The sculpture is large and organic, so a thick flow coat seems suitable.

Are there any products that match all these traits?

1. Compatible with epoxy
2. Non-yellowing
3. High gloss finish
4. Flowable, dries to a consistent smooth finish (no drips, lumps, etc)
5. Dries in about a day

Crystal Clear 202 seems maybe OK, but it's pricey, toxic, and takes days to cure when it's thin.

 

[udog]

Have you thought of using a 2K varnish?. With a paint gun it could work fine.
I think there is also epoxy based varnish.

 

[helix_3]

Have you thought of using a 2K varnish?. With a paint gun it could work fine.
I think there is also epoxy based varnish.

I would love to apply something with a paint gun, unfortunately I don't have access to a gun/ compressor/ booth.

 

[udog]

2k varnish, or epoxy based can also be applied by hand brush anyway, you don't need the airbrush. If you are looking after protecting your sculpt in exterior I think it would be a good choice. Varnishes are designed for the purpose and you'll find them in matte, satin and gloss. And it matches all the requirements you listed.
Using resins such as Cristal Clear or others will be much more sloppy to apply, might drip etc. They are not designed for that in general, but for other purposes (not saying they can't be used).
I would go to a paint supplier and tell them what you want. There's a big variety, (water based also). I'd say it's the standard way to do this.
It's what I've used for this purpose. Specially for polyester, but will do for epoxy too I'd say.

 

[helix_3]

2k varnish, or epoxy based can also be applied by hand brush anyway, you don't need the airbrush.

Interesting, does it self-level after a time? Or will the brush strokes be visible after it cures.

 

[udog]

In general all paints shrink a little and this helps make brush strokes disappear etc, it will depend on the kind of paint or varnish. There are many kinds around. But as I said I would go to a good paint supplier explain them what you have and want and I'm sure they can inform you of all the pros and cons and also direct you to the right product.
You can also make a small test on and see what happens.
I do think that it won't be worse than brushing by hand a resin.