To clean uPVC windows and conservatories: 1. Open the window and vacuum in all of the vents, nooks and crannies to remove any dirt or grime. If your hoover has a brush nozzle, use this to prevent scratching the uPVC. This window and conservatory cleanline. Unplasticized Polyvinyl Chloride, or uPVC for short, is manufactured to an extremely high quality and it will not rot, rust, peel or flake.
I done all of my windows last year.
Tried solvents, very slow and even melted the top layer. First wash off the loose dirt then apply the jif with a non. I have had the same problem, a window manufacturer told me i should have removed the tapes before the windows were fitted as they were their only to protect the windows in transit.
As you have found out they are a nightmare to remove. Hello, I spent a few months working for a large manufacturer of quality upvc windows and the advice from the factory was to clean the glass with a propriety glass cleaner and to clean the frames with whatever you use to clean your bath. Cleaning uPVC Window Frames Tips. Only use white rags when cleaning. The reason for this is that brightly coloured cloths may transfer fiber paint onto the uPVC window frame.