The resistance to solar radiation is relative (basically non-existent). After two years, it dissolves on its own. You buy it with the prospect of changing it after a few years, or you find something better if it exists.

I use it to protect my aquarium from the cat. So far (3 months+) of use, I am satisfied. Very good durability, can be cut to the dimensions you want and incredibly thin and discreet. I highly recommend it