UV cured acrylic resin (405nm) specially formulated for fly tying. Cures hard and slightly translucent to show colours underneath. Can also be used where a waterproof adhesive for build up of thin layers is required. Use a UV torch or lamp for curing wide areas and a high intensity focussed pen for rapid curing of small volumes. Ensure you use a "BUG OFF" tuned lamp, torch or pen for best results. Keep "BUG OFF" out of light when not in use; warm to room temperature for viscosity control.