Evening Republican, Volume 19, Number 54, Rensselaer, Jasper County, 5 March 1915 — Stops Heat Rays. [ARTICLE]

Stops Heat Rays.

An interesting chemical paint which has the property of intercepting the heat rays of the sun, has recently been put on the market by a German concern. It may be applied to tin, corrugated iron, slate or glass, Indeed, any material used in the roofing of buildings, and by its peculiar quality leaves the room beneath the roof comparatively cool. It is stated that th© temperature of workrooms may be reduced from 15 to 20 degrees Fahrenheit, according to the surface which can be covered, and the added efficiency of the workmen thus promoted is a direct and measurable gain. The paint is light blue in color, so that, if applied to glass, It does not appreciably Influence the light. Its components are at present a trade secret, but the fact that many large electrio and manufacturing companies in Germany are regular users is cited as evidence that it is practical.