L R AS Published on Sunday 17 May 2020 - n° 322 - Categories:R&D
Study of the effects of ultraviolet light on background sheets
Fraunhofer ISE launches a study of the effects of ultraviolet light on polymer backings in conjunction with five international laboratories
Ultraviolet light is a significant cause of degradation as it causes "yellowing", which reduces the reflective performance of the backing sheet and causes other problems.
https://www.pv-magazine.com/2020/05/11/investigating-backsheets-and-ultraviolet-stability/
PV Magazine of 11 May