Impactinator® Glass

Anti Glare Coating

Glass is strengthened by two methods: heat treating and chemical strengthening, where the glass is subjected to a special heat treatment and cooled, and tempered glass, which is made by heating annealed glass uniformly and cooling it faster than heat-strengthened glass. The main reasons to strengthen glass are to increase wind load, increase impact resistance, and combat thermal stress.

Using the same technique of evaluation with pencils as the Elcometer 3080 , this instrument enables the pencil lead to be maintained at a constant force of 7.5N, and at the appropriate angle - which increases the reproducibility of the test.

Linear thermal expansion is a critical factor to consider in environments with wide temperature requirements, as it can cause problems due to different thermal expansion coefficients of touch screen materials or the bezel structure. Different coefficients of thermal expansion can be defined for a substance, such as linear thermal expansion (LTE), area thermal expansion (ATE), or volumetric thermal expansion (VTE). Some substances expand when cooled, such as freezing water, and have negative thermal expansion coefficients.