osmononame Posted August 30, 2022 Share Posted August 30, 2022 (edited) Hi all, I have a window at my self build which have been marked with some mortar / water residue left by some careless brickies. The window was covered but obviously not good enough. The marks are not coming off with regular cleaner. Can anyone suggest anything that might work to remove them but won't damage the paintwork? Image attached. Luckily you can't see the window unless you go looking for it so not the end of the world if I can't get the marks off but I'd like to give it a shot! Edited August 30, 2022 by osmononame Link to comment Share on other sites More sharing options...
Roundtuit Posted August 30, 2022 Share Posted August 30, 2022 Sorry, can't recommend anything, but as a last resort, if you feel strongly enough about it, you can just pop the aluminium cladding off and replace it, or maybe get it re-sprayed. Link to comment Share on other sites More sharing options...
osmononame Posted August 31, 2022 Author Share Posted August 31, 2022 Thought I would update this for anyone that might come across this in the future - I had a couple of spare cills so soaked them with cleaning vinegar (neat) overnight to see if that would stain them - it did not so I tried the cleaning vinegar with a non abrasive brush this morning on the window itself and it cleaned up a treat. Who would've thought it would be that simple! 2 Link to comment Share on other sites More sharing options...
markc Posted August 31, 2022 Share Posted August 31, 2022 Yes, vinegar being acidic is perfect for cleaning cementitious snot from frames and windows Link to comment Share on other sites More sharing options...
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