Last job of the day was a rather large, and boring, connie roof and windows (14 panels).
I decided to trad all the windows (having used custys tap to clean all the frames etc) before hand.
To cut a long story short, I got to the last window and realised I had trad all the windows using Screwfix No Nonsense Degreaser in my spray bottle (I have 4 spray bottles all the same but with different chems. All labelled but I guess I was tired and didn't look properly). Had a quick look at the glass and all seemed ok. I'll give it 8 weeks when i'm back and see how they look