ITW Dykem Cross Check Torque Seal Orange provides a reliable solution for identifying vibratory loosening or tampering in nuts, bolts, fasteners, and assemblies. Highly visible under UV/black light, Cross Check marks are easily broken if parts are tampered with or become loose, offering excellent warranty protection. Safe for most surfaces, these tamper proof torque marks adhere well to metal and other substrates, drying to the touch in 30-40 minutes. Completion of curing occurs in 7-10 days, but can be reduced by exposing to elevated temperatures or blowing hot air.