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Just thought I would check how you all take concrete off the windows on a builders clean.
At the moment we use sticky stuff remover on the whole window to help soften the concrete and then lightly use a scraper to try and not scratch the glass.
Never new that I've got builders cleans on Thursday and Friday and I've got to do windows in and out I've got acid would that be worth using then to soften them muck up on the windows?