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Concrete Polishing

Comparable to sanding wood, polishing concrete is a mechanical process that is an excellent choice for industrial, warehouse, and heavily trafficked floors. The concrete is first treated with a chemical densifier, and then ground with progressively finer grinding tools. These grinding tools are typically progressive grits of diamond grinding cup wheels and diamond polishing pads. After the concrete is polished, stains and dyes are often applied to enhance the concrete, with additional finishing options including scoring, creating radial lines, grids, bands, borders, and other custom designs.

Polished Concrete 1

Polished Concrete 4

Polished Concrete 2

Polished Concrete 5

Polished Concrete 3

Polished Concrete 6

Polished Concrete 7

Polished Concrete 8

Finish Levels of Polished Concrete

Typical Industry Standards:

AGGREGATE EXPOSURE TABLE
CLASS NAME APPROXIMATE SURFACE CUT DEPTH APPEARANCE
A Cream Very little Little aggregate exposure.
B Fine aggregate (salt and pepper finish) 1/16 inch Fine aggregate exposure with little or no medium aggregate at random locations.
C Medium aggregate 1/8 inch Medium aggregate exposure with little or no large aggregate exposure at random locations.
D Large aggregate 1/4 inch Large aggregate with little or no fine aggregate exposure.
GLOSS LEVEL TABLE
LEVEL GRIT SHEEN LEVEL MINIMUM NO. OF ABRASIVE PASSES APPEARANCE GLOSS READING
1 Below 100 None to very low 4 Flat. Floor has little if any reflectivity. n/a
2 100 to 400 Low to medium 5 Satin or matte appearance with or without slight diffused reflection. 40-50
3 800 and higher Medium to high 6 Semi-polished. Objects being reflected are not quite sharp and crisp, but can be easily identified. 50-60
4 800 and higher High 7 Highly polished. Objects being reflected are sharp and crisp, with mirror-like clarity. 60-80

 

Caring for your Polished Concrete

Helpful Tips

  • Clean up spills as fast as possible. Less time on the floor means less chance of stains.
  • Pick up large debris by hand.
  • Sweep or dust-mop entire floor.
  • Blot up spills or water immediately with a clean, dry cloth, sponge, or paper towel.
  • Do not use acidic or alkaline cleaning products on your concrete floor. Use a neutral floor cleaner, such as Zep neutral cleaner or OdoBan.
  • Do not allow excess liquid to remain on the surface of your concrete floor.  Clean up spills as soon as possible.
  • Simply use a micro-fiber pad or use a soft nylon brush.
  • Sweep daily to keep your concrete floor clean from dust, dirt and grit.
  • Do not use steel wool or other scouring or abrasive pads that may scratch or remove the protective floor treatment.
  • Do not apply a floor wax or polish to your concrete flooring.
  • Use mats at doorways and under office chairs.
  • Do not apply tape or other adhesives to the floor.