Security Check Paint Marker provides a convenient visual observation method for identifying vibrating attenuation or damage in the coupling, bolts, fasteners and prefabricated parts. A bright, noticeable paint after drying functions as a seal, which breaks easily when you try to unscrew it or open it. Special paint is resistant to UV rays, atmospheric precipitation, acids, solvents, brake fluid, oils and gasoline. Safe for most surfaces due to the lack of xylene in the paint, and at the same time provides excellent adhesion to the metal. Ideal for monitoring the threaded connections in the braking systems of cars and other mobile equipment.