We've been asked to clean a factory but its 11 years since last clean.
There seems to be some kind of film on the glass. It's like mirrored or something.
The squeegee drags on the film.
To make things worse there's like a limescle buildup or something. A haze that doesn't scrub off easy. I used a washer with the green abrasive strip on, but even with that it took ages to scrub off.
I'm sure there must be a product that will shift it easier?