Impactinator® Glass

Gloss Level

a coating, which reduces the specular reflectance of a surface by increasing the diffuse reflectance from that surface

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.