Hey there,

do you remember me?

Well, new year, new guitar build. This time with "Solarez - I can't believe it's not lacquer" as a top coat for the veneer side. It's actually a nice product, it sands very nicely when it's cured, but there is the problem: I can't get it to cure properly. The backside says "expose to sunlight for a few minutes" but that doesn't work for me.

I actually tried my UV exposure unit (which is specifically for curing UV resins) up to 3 hours(!) but the surface still feels tacky.
Then I tried LED Blacklights which supposedly have the right wavelength (385nm) but - no cake.
So, last resort, German spring sun - still tacky.

I applied thin coats only. I think the first 3-4 coats did actually cure to a degree where they were sandable, but the coat after sanding is now just not curing. I saw the stuff on youtube and people just sprayed it on, brought it outside and it was hard in seconds... Any idea what I'm doing wrong, or how long it needs to cure outside in other conditions than bright California sun?