A Fine-Point Phosphorescent Marking Pen for Laboratory Autography

The Glow-Writer is a phosphorescent marking pen for annotating or marking chemiluminescent and isotope-labeled substrates for X-ray film autography. The unique marker delivers a phosphor-containing marking ink through a fine point porous nib. Before exposure to X-ray film, the phosphorescent writing is excited by bright room light. A phosphor ink having an optimum concentration of phosphor and a relatively short afterglow half-life (approx. 2-3 minutes) has been selected so that upon exposure to X-ray film, autographic exposures of almost any duration will be easily readable on the film.

Also writes on glass, quartz, ceramics, paper, plastics.

The fine point nib is easily replaceable if it dries out. (see Cat. #GNIB-1000)