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Akemi Stone Cleaner - Water-Based Alkaline Cleaning Concentrate (1 L, Highly Concentrated, Foodsafe)

Akemi Stone Cleaner — Water-Based Concentrated Cleaning Agent

AKEMI® Stone Cleaner is a highly concentrated, water-based, slightly alkaline cleaning agent for natural and cast stone. Free of phosphates and built on readily biodegradable surfactants, it strips away the tough residues stone shops and restorers deal with every day — building-material films, wax and self-shine layers, thin concrete haze, oil and grease, soot, rubber, tar, and leftover synthetic paint or plaster. Diluted anywhere from 1:1 to 1:50 with water, it works fast and rinses clean, and once used as directed the treated surface is food-safe.

  • Highly concentrated — dilute 1:1 up to 1:50 with water to suit the job
  • Removes tough residues — wax, grease, oil, soot, tar, concrete film, paint and plaster
  • Phosphate-free with readily biodegradable surfactants
  • Food-safe when used as directed — certified to DIN 10516
  • Broadly compatible — marble, granite, travertine, terrazzo, tile, and more
Property Detail
Brand Akemi
Manufacturer AKEMI GmbH, Nuremberg, Germany
Product Type Highly concentrated water-based stone cleaner (slightly alkaline)
Chemical Basis Surfactant-based concentrate, free of phosphates; biodegradable surfactants
Colour Colourless to yellow
Density Approx. 1.01 g/cm³ (8.4 lb/gal)
pH Value Approx. 10 (concentrated)
Dilution 1:1 to 1:50 with water
Dwell Time 10–20 minutes
Coverage Approx. 410–815 ft²/gal (10–20 m²/L), applied undiluted
Food Contact Food-safe when used as directed (certified to DIN 10516)
Shelf Life Approx. 3 years stored cool and frost-free in the tightly closed original container
Manufacturer Part Number CARE.10812
  • Rapid, thorough removal of building-material residue, wax, and self-shine layers
  • Lifts thin concrete films, oil and grease, soot, rubber, and tar spots
  • Removes residues of synthetic paints and synthetic plaster
  • Highly concentrated — economical, adjustable dilution from 1:1 to 1:50
  • Free of phosphates; surfactants are readily biodegradable
  • Food-safe when used as directed — suitable for kitchen and food-preparation areas

Suitable for all natural and cast stone, including:

  • Marble, granite, travertine, and slate
  • Terrazzo and fair-faced concrete
  • Brick and cotto slabs, tiles, and fine stoneware

Not suitable for: synthetic materials that are not resistant to solvents, or rubber. If in doubt, test on an inconspicuous area first.

  1. Dilute with water at a ratio of 1:1 to 1:50, depending on how heavy the soiling is, and apply to the stone surface.
  2. Let the cleaner work for 10–20 minutes.
  3. For deeper staining, scrub with a brush or nylon pad.
  4. Rinse thoroughly with water.
  • Do not apply to synthetic materials that are not solvent-resistant, or to rubber; test on an inconspicuous area if unsure.
  • Always work from a diluted solution and rinse thoroughly with water afterward.
  • For adequate waste disposal, the container must be completely emptied.
  • Industrial chemical product — use only in well-ventilated areas and wear chemical-resistant gloves and eye protection. Always consult the AKEMI Safety Data Sheet (SDS) before use.

Industrial chemical product. Use only in well-ventilated areas. Wear chemical-resistant gloves and eye protection. Consult the AKEMI Safety Data Sheet (available from the manufacturer or stein.akemi.de) before use. Technical values are manufacturer figures and may vary with jobsite conditions.