Build thick, hard fly coatings with a very viscous UV-curing formula.Solarez Fly-Tie Thick Hard Formula is made for thick coatings or spheres on fly bodies, heads, and eyes. The very viscous formula helps with controlled application and cures in seconds with Solarez UV light systems, leaving a tack-free hard finish when fully cured.Key Features Thick, hard formula for fly heads, bodies, and eyes Very viscous consistency for making thick coatings or spheres Low odor formula Cures in seconds with Solarez UV light systems Guaranteed tack-free when cured with Solarez UV light systems Product Details Apply in shade. Irradiate with intense UV light for one second, wait 15 seconds, irradiate again for one second, wait, then finish with 30 full seconds of UV light. This curing technique reduces heat and shrinkage.