Jasper County Democrat, Volume 10, Number 51, Rensselaer, Jasper County, 21 March 1908 — Chameleon Paint. [ARTICLE]

Chameleon Paint.

A color changing paint for use upon machinery ba* recently been introduced on the New York market. This paint will be useful as an indicator of hot boxes or hot bearings. Red when cool, it will change to black at whatever temperature is too high for the machine It guards. Then when the machine cools it will change back to red again. The peint is made by mixing mercuric iodide and cupric iodide with distilled water in proportions that vary according to the degree of heat whereat it is desirable for the color change to occur.