An established and reliable range of color change Irreversible crayons that change color when applied to pre-heated surfaces Ideal for production processes in Aluminum, Zinc, Textiles, Plastics, Glass, Enameling and many more.
When Applied to pre-heat surfaces, if color change takes place: -
(a) within 1-2 seconds, the temperature is within ±5°C of it rating.
(b) instantaneously, the temperature is higher than it rating;
Instructions for Use
Mark preheated surface where the measurement is desired
Immediate color change indicates that the measurement surface is higher
than the crayon rating. A color change after (2) two seconds indicates
that the measurement surface is lower than the crayon rating Accuracy ±