[Steve_c]

I have a new job on tomorrow the customer has had 3 new window panes replaced, but there is some sort of baked on white residue on the glass,if you scrape it with your finger nail it slowly comes of. What i was going to try is white spirit first if that doesn't work what about methylated spirits?? any ideas? Thanks

[Tim82]

I've heard that that works with alot of scrubbing

[Mr Bungalow]

Hello Steve,

Try this stuff, it should work if used correctly.  Link below;

http://www.windowcleaningwarehouse.co.uk/shop/soap/titan-mineral-deposit-remover.html.

or if that doesn't work try this stuff.  See other link below;

http://www.windowcleaningwarehouse.co.uk/shop/soap/sorbo-hard-water-remover.html.

Hope the above helps!

Kind regards.

[sgibsoncleaning]

its the glue from the protecive film on new glass. its a scraper job. 6inch new blade loads of water and soap. it comes of easily.
have the same thing daily

[Ian Mason]

If it is silicone, try using distilled meths, it works a treat.