Curing Tabs. Unlike most other curing tabs, our non U.V. inhibited curing tabs allow the optimum transmittance of U.V. to the repair area since they do not filter out any U.V. They are reusable, just place them in a cleaning jar with 99% alcohol and clean them off. One pack can last forever. Comes in packs of twenty (20) and in 1" X 3" size to accommodate long crack repairs.