I bought some of the glow (excite) powder, from Wilflex I believe. I need to know what mesh I can use, because a 110 doesn't seem to be letting the glow powder through. I can't find any documentation on it.
the powder i was given was about as gritty as transfer adhesive. not like sand, but you could definitely feel the grit.
when i did it the lady that does the art for the church the job was for spent hours researching glow powders. she found a place online that sells really bright stuff and bought a pound. i mixed it about half and half with a qt. of clear base. on the 83 mesh by the end of the run a lot of powder was left in the screen, it kind of squeezed what it could through, but left a lot.
If you had enough light to charge it, it turned out well. they were disappointed because it was for a sunday morning kids music special thing, even though they blocked out the windows and it was raining that morning, they couldn't get it dark enough to have the full effect.
Honestly, if it were me, I'd try grinding the powder up a little finer with a mortar/pestle or whatever you have. From what I know about the composition of this powder, it shouldnt matter. Although using a larger screen would obviously work.
For the job I was planning, I would need as light hand/ink thickness as possible, 83 with larger flecks would kill the effect.
I just used an 83 mesh screen for the wilflex phosphorescent but I also added about a 1/4 cup of glow powder. I still had to do three coats of ink to get a good enough base. It could have standed four our five layers but it was getting thick.
A lower mesh maybe in the 60's might have given me a nice thicker layer to start out with. I do know 110 wouldn't have worked well with even the plain wilflex. The ink has the consistency of a watery, oily mix. To make it glow consistently and bright you need to lay down a good thick coat.
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I had to use an 83 because I was in a time crunch and didn't have time to get a custom stretched 40. I laid down a white base with a 110, and then a clear finesse with the glow powder through an 83. I was disappointed with the glow effect, but the customer seemed happy with it, so I guess that's what matters. If I use it again, I'll try a 40 screen and see if I could get more glow out of it.
Yeah I found you have to play with it to get close to what you want.
There were so many variables for me I just had to play with it. My shirt was already white but a layer of lemon yellow had to go down first then the glow layer on top of it.
Your right, as long as the customer is happy that's what matters. Sometimes we are the ones that are to critical.
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Starting from humble beginnings.Witness The Majk
Glow Powder Screen Question! 
