f | solarfloat - Model HT -Diffusion-tight Barrier Layer
We produce the industrial “HT” AR coating under the purest vacuum conditions and on ribbons with a size of up to 21 m². This one-of-a-kind process ensures extremely high homogeneity and reproducibility of the coating across the entire surface. The coating is available in a single-sided or double-sided version.
During the subsequent thermal tempering of the ground glass, the AR coating is “annealed” at a temperature of about 650 °C and permanently chemically combined with the glass substrate in this process. On the outer surface, a nano-porous structure forms which is invisible to the human eye and which is responsible for the highly efficient anti-reflective coating.
The extra effect: A diffusion-tight SiOx barrier layer remains in place between the glass substrate and the nano-porous structure. Purest quartz glass on solar glass! This barrier layer cannot be removed or penetrated and ensures the unique and long-lasting durability of our AR coating. The extraordinary durability is confirmed by our customers and by independent research bodies. The coating also fulfills the requirements of the DIN EN 1096 and IEC 61215 standards.