What are the characteristics of the behind glass mineral-coated flat mirror?
The used glass mirror is a mineral-coated flat mirror (DIN 1238). This type of mirrors filter out the UV portion of the sunlight (regrettable or desirable?). The infrared portion and thus the heat energy however is fully transferred! The mineral glass reflector has a significantly higher weight, but it is easy to clean. It has a reflection efficiency of about 85 % with a very low surface waviness. Because of the silver content of the mirror layer corrosion / aging of the mirror layer must be considered in a humid environment! Depending on the environmental conditions the effect of ‘tarnishing’ appears sooner or later. As you know it from traffic mirros, for example, small blunt points are formed at the beginning, which later can become areas. This mirror is subject to weather- and environment-related performance decline and aging and therefore is to be regarded as a wearing part!
