Gulff Clear UV Resins: Classic, Fatman, Thinman and Flexman Create small nymphs, larvae, pupae and scuds. Build streamer bodies, heads or bigger shrimps. Some flies just need a little bit resin finishing. A high quality clear finish lets you use other material under the resin. Gulff UV resins are always 100% tack-free. Made by using high quality resin material which cures in few seconds.