Clean It Up
UK General Cleaning Forum => Frequently Asked Questions & Useful Resources => Topic started by: Michelle garton on November 04, 2018, 04:46:33 pm
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Hi guys .got area to clean about 20x2m.The dark red brick is old and smooth.it is covered in black staining got a cold petrol jet wash and customer wants instant result.what's best chemical to use please.ive heard hydrofluoric acid based products do the job.ive tried biocides/hypo/hydrochloric but not removing staining.cheers