Nissen 30200 Ultraviolet Marker
J.P. Nissen ultraviolet marker makes clear, invisible marks. This marker produces marks invisible under normal light, but glows brightly when illuminated with a UV or black-light. Perfect for security or quality control processes where identification, tamper-proofing, or anti-counterfeiting marks are needed. Marks are permanent, they won't chip, peel, fade or rub off. Cured marks will withstand temperatures in excess of 400 degree F/200 degree C.