Markal Security Check Paint Marker is an inspection paint used to visually detect torque movement due to vibratory loosening or tampering of fittings, assemblies, nuts, bolts and studs. This quick-drying tamper-proof torque marker identifies whether a part has been moved from its original position. Once dried in place, Markal Security Check Paint Marker creates a seal for torque movement detection, which allows the dry and brittle material stripe to break, providing proof of fastener tampering or loosening. Durable and able to be used in extreme heat, this paint marker is sure to keep you and your workers safe. Torque sealants are used extensively in a variety of industries. These include, among others, the automotive industry, the aviation and aerospace industry, the rail and railroad industry or, for example, manufacturers and service providers of fairground rides. Markal Security Check Paint Marker helps quality control by providing warranty management in the event of tampering.