When I restored and nano protected this shower in December 2021 the client said to me "what will happen now if I never clean the glass, because I'm telling you right now..... I am never going to clean it". 😄 I liked his honesty!
I told him that the surface of the glass is now sealed and in future the glass will be able to restored easily by hand if staining forms again. Talk is cheap, but in this video you will see these are not empty claims I am making.