How to Polish Concrete: Step-by-Step Guide

How To Polish Concrete Floors

Achieve stunning, high-performance polished concrete floors with our expert guide. Learn the professional techniques for grinding, densifying, and polishing concrete to create a durable, low-maintenance surface.
Our step-by-step approach covers everything from selecting the right diamond abrasives to achieving the desired level of shine. Take your concrete polishing skills to the next level and deliver exceptional results for your clients.

Steps To Polish Concrete

Step 1

Determine Concrete Hardness using a MOHS Test Kit

You will need to determine concrete hardness with a MOHS Concrete Hardness Test Kit in order to select the correct metal bond diamond abrasives. Start with the highest number tip(9) and continue to scratch the surface with the descending tips until the tip stops scratching the floor. When the tip no longer scratches the floor, you have reached the hardness level of the concrete. Test at least 3 areas of the floor to get average test rating. Use the Machine Specific Tooling Guide to select the correct tooling bond.

Step 2

Concrete Surface Preparation – Metal Grinding

If the floor is coated, determine type of coating and remove with appropriate tooling. Repair and fill any surface holes or cracks. Grind with either 16, 30/40, 70/80 grit metal bond tooling to achieve desired exposure and floor flatness. TIP: Start with highest grit where possible and move to lower grit when necessary.

Step 3

Transitional Stage - Removing Metal Tooling Marks

Remove metal tooling scratches using 50, 100 or 200 grit transitional tooling. Transitional tooling effectively removes scratches and creates a surface ready for polishing. TIP: Your floor should be free of all visible tooling marks after this stage.

Step 4

Densify and Harden the Concrete

Ensure your floor has been vacuumed and all tool marks have been removed. Use ULTRADensifil (Pore & Crack Filler) densifier to the concrete to help solidify and densify the surface and to provide extra protection from water penetration and staining. To learn more, see our densifiers page. TIP:  DO NOT let densifiers pool or puddle on your floor.  This can create staining that is difficult to remove in the polishing stages.

Step 5

Concrete Polishing

Begin with appropriate resin bond tooling 200, 400, 800, 1500, 3000 grit (3000 grit optional).  Ensure all concrete dust is removed (vacuumed) in between passes. Burnish floor with 3000 grit burnishing pad after your final grit level.

Step 6

Seal and Protect Polished Concrete

Once you get the look and polish you’re striving for, you will want to protect the surface by applying a commercial stain-guard product, like WerkMaster ULTRAguard sealer and surface wear protector especially if the surface will be exposed to grease, oil or chemicals. Use a pump up sprayer and apply Two thin light coats. Allow coats to dry for at 30 minutes between coats. Burnish floor to achieve maximum shine and polish with either your WerkMaster Machine or Propane Burnisher. TIP: Start with a low RPM burnishing pass to ensure sealer has cured and pad is not scratching floor.

Garage floor concrete polishing

The Edge is a compact and powerful floor grinder and polisher. Available as a 240v or 110v model, The Edge is the perfect stand alone machine or as a compliment to a larger grinder. Exceptional build quality and easy to use, The Edge will give you professional results every time!

Step by step concrete polishing

Using the WerkMaster Scarab this Step by step video demonstrates the complete concrete floor polishing and finishing process using WerkMaster diamond abrasive tooling, ULTRAdensifil Lithium Densifier and ULTRAguard Floor Sealer.

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