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Apparently my new light (365nm) still is not strong enough. So hopefully this will solve the problem! (See below) From Loon: I believe the issue lies in the light you are using. Our UV Resins are set to cure between 395-405 nm, so the wavelength of the light you are using isn't properly penetrating and curing the product.

That makes sense... However, I just got a new bottle of loon flow (I also use loon thin with similar results) and still getting same cloudiness, I tie in a temp controlled room inside house, and yes, at 8,000 ft it's pretty arid here so I don't think it's water. It could be that I'm applying too thick or too thin I guess, but I'm pretty careful on that. It does seem worse along the wire wrap edges sometimes, not sure what that means- too thick or too thin? The older flies were with an older weaker light, so I'm wondering if they just didn't sure correctly. The new light 365nm seems to be doing better, but I still see some issues with that one too, just not as severe. Also wondering if I need to give short quick blasts of UV when curing instead of holding it on the fly while rotating for 20 solid seconds- and maybe leave it a bit tacky? I'm kind of at a loss. Is it possibly the thread I use, some of the 70 Ultra thread seems to have a wax coating on it. I am also wondering if anyone else sees a fly body actually go cloudy as it dries during the first 10-20 seconds of UV light after adding resin. I've included some more examples showing regular light and UV light. The first two are older ones, the rest are within the past week. So, any help, ideas, solutions, suggestions, criticisms are welcome. I'm pretty thick skinned (just like these flies).

"Have you reached out to Loon, and what was their response?" I've just written to loon but have not yet heard back.

I’m having a long time problem with loon uv flow and clear. It goes on nice, looks great when NOT under uv light, but when cooking with a 365 nm light, the flies immediately start to cloud up. You can literally watch it happen. Once resin has dried,(within 20 seconds usually) they look good under normal light but when back under the uv light they are cloudy. This happens on tinsel, asb, and thread. Can’t find a solution. Over time, (within weeks to a year) the coating then starts to flake off. Wondering if it's the light (just replaced it) or some other issue. Not looking to try other products as this doesn't seem to happen to anyone else I can find that uses the same products. I've just written to loon but have not yet heard back. Ther pix show a fly from yesterday under regular light and then under UV. I will upload many more pictures that will show even more detail, but just wanted to get the thread started. Not sure what's taken me so long to ask for help- can't find answers anywhere.