upvc cleaner is crap for roofs ,may damage. its all right for taking silicone off use diluted tfr for the roofs .whites i use cif rinse it off then i use a bit of pledge to polish whites comes up a treat
I agree, I've spent a few bob in the last few weeks on all sorts of wonderful stuff that claims to clean and restore UPVC......
All crap in my opinion, I went back to what we used 20 years ago when making Ali windows.
Jif or as it's now called cif which always makes me grin when I say it
