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Stain Removal Table

Type of Stain Suggested Removal Method
Moss, Fungi and Mould Dry brushing with or without application of clean sharp sand. OR High pressure water jetting with or without detergent. OR Apply fungicides.
Leaf Mould & Wood Rot Use ordinary bleach or calcium chloride followed by sodium hypochlorite dissolved in water (1kg in 5 litres) then scrub with stiff brush.
Tobacco Use ordinary bleach then scrub with stiff brush.
Tomato Sauce, Mustard & Oil Apply undiluted liquid detergent for 15–30 minutes, then scrub and wash with hot water.
Chewing Gum Scrape off excess material and apply poultice of methylated spirit.
Tyre Marks Scrub using stiff brush with aid of water, detergent and scoring powder or sharp sand.
Oil or Vehicle Grease Apply dry absorbents such as Fullers earth, talc, diatomaceous earth or kitty litter for at least 24 hours to remove excess oil, then sweep up.
Dry Paint Scrape off excess paint, apply paint remover for 15 to 30 minutes, loosen with gentle scrubbing and absorb loosened material with paper or cloth. Do not rub.
Fresh Mortar Cover with clean damp sand. Sweep off with stiff broom. Repeat as necessary. Apply clean dry sand and allow to dry.
Hardened Mortar Remove lumps of hardened material by chiselling, scraping or grinding. Wet surface & apply dilute hydrochloric acid (1 part acid to 20 parts of water) & scrub vigorously for 2–3 minutes. Thoroughly hose down immediately after scrubbing.
Clay Scrape off lumps then scrub with hot water and strong detergent.
General Grime Scrub with poultice of talc and bleach diluted in water (1:5) & wash with water.
Efflorescence Refer to Section 2 of this Document.

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