Smurf
Well-known member
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I keep being asked if I can clean dressed sandstone type sills/lintels etc but have not found an effective, quick safe way of cleaning them yet.
Does anyone have any suggestion that you have gained from experience of methods you use and/or chems that give good quick cleaning results without discolouring or damaging them?
Does anyone have any suggestion that you have gained from experience of methods you use and/or chems that give good quick cleaning results without discolouring or damaging them?