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I bought some phosphoric acid to remove cement stains on Indian sandstone and it worked a treat. Brush it on and it dissolves the cement and comes up a treat. I watched a guy on utube do a video of it. ?Hello all I was wondering if you could advise how to clean render stains from anthracite window and door frames.
I know it cannot be abrasive or solvent based but I’ve tried warm soapy water with minimal effect.
any advice would be welcome.
Thanks.
That’s in stone not window frames !!!!!! I wouldn’t want to use that on window and door frames that are plastic coatedI bought some phosphoric acid to remove cement stains on Indian sandstone and it worked a treat. Brush it on and it dissolves the cement and comes up a treat. I watched a guy on utube do a video of it. ?
Could be metal painted frames which will be just as bad, I wouldn't touch either as too high risk, cause damage and the custy want's replacement units equals £1,000'sThat’s in stone not window frames !!!!!! I wouldn’t want to use that on window and door frames that are plastic coated
You could test a bit because its not that strong an acid. They have it it tile cleaner to remove grout on tiles. ?That’s in stone not window frames !!!!!! I wouldn’t want to use that on window and door frames that are plastic coated
Tbh I'd leave it...its not your problem....its really not worth trying to find some chemical to try and remove it...you could cause damage and the customer wont be happy anyway....Hello all I was wondering if you could advise how to clean render stains from anthracite window and door frames.
I know it cannot be abrasive or solvent based but I’ve tried warm soapy water with minimal effect.
any advice would be welcome.
Thanks.