This winter I started finishing chironomids with a single coat of Solarez Thick, Hard Formula (the red tube). It gives good shiny depth without having to apply multiple coats. No idea if it is an actual improvement yet, but thought I'd pass along the idea.You won't get a "glass" effect unless you varnish the body. Three coats of Hard as Nails will do it but there will need to b at least an hour between coats. I do a coat of UV and as soon as it is cured I do a single thin coat of HaN. That gives a nice shiny look to the fly.
I do exactly the same, easier to get an even finish spreading the resin onto a card or old hook box or the like. And plus 1 for the utc 70, the black one is a nice deep black and is flat so lays nice and thin on the hook.For those who would like to follow my method of applying UV resin to buzzers, don't apply a blob of resin direct from the bottle onto the fly. I put a dab on a flat surface - an unused hook box is good - and apply it with a dubbing needle. It does not need to be a thick coating. Cure with the UV light and then add a thin coat of HaN with the dubbing needle. I am less interested in the UV effect than I am in a durable fly which is what this treatment produces.