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Concrete Polishing Techniques: How to Achieve a High-Gloss Finish for Your Floor

Does your concrete floor look dull, scratched, or worn out? Are you looking for a renewed surface with lasting luster and shine? Concrete polishing may be the perfect solution!

Our experts at Epoxy Time cover everything you need to know about this efficient and cost-effective method of updating your concrete flooring.

What Is Concrete Polishing?

Polishing involves buffing and lightly grinding down surfaces to make them smoother and more attractive. This simple yet effective flooring option works well for many spaces, including:

  • Garages
  • Patios
  • Auto showrooms
  • Warehouses
  • Restaurants
  • Retail stores
  • Hotels
  • Office buildings
  • And more

If you’ve ever seen a glossy concrete surface in any of these types of environments, it was likely polished. Many residential and commercial property owners opt for this type of flooring to give their space a sleek, clean look.

Breaking Down the Concrete Polishing Process

Concrete polishing sounds like a simple process, but it takes specific equipment and expertise to do it right. Let’s take a look at the steps involved:

Surface Preparation

Before starting the polishing process, you need a smooth surface free of imperfections. Otherwise, these blemishes will show through the glossy finish.

This step may involve repairing cracks, filling pits and holes, patching areas with significant wear and tear, and more. If the concrete floor has a layer of sealant, a previous coating, or another finish, you need to remove it with a coarse abrasive.

Sanding the Concrete

Next, you’ll use a series of progressively finer-grit sanding pads to grind down the surface. Typically, this process takes place with a stand-up grinder, which looks like a vacuum cleaner without a bag.

Applying Chemical Hardener

After the initial sanding, it’s time to use a densifier or hardener. This product helps protect your concrete floor by strengthening its bonds, making it more resistant to chemicals, stains, and wear and tear. Always be sure to follow the manufacturer’s instructions for application.

Polishing the Concrete

After the densifier dries, you can start buffing the floor. Polishing is the most crucial step, and you need to be careful when doing it. You should use a series of finer-grit diamond pads until you achieve the desired shine.

Make sure to start with lighter grit pads and work your way up as needed. The higher the number, the finer and smoother the grit, creating a more luminous finish. It’s better to be slow and steady as you work your way up; rushing through the steps can damage the floor or create an excessive shine.

Applying a High-Gloss Sealer

For maximum durability and protection, you need to seal the floor after polishing. A high-gloss sealer can help preserve the shine while repelling dirt, liquids, and other contaminants. While every product is different, they usually follow the same instructions:

  1. Thoroughly clean the concrete surface. Leaving any dirt, debris, or oils behind can weaken the bond between the sealer and the floor, affecting its lifespan. It may also create a blotchy, uneven finish.
  2. While waiting for the floor to dry, mix the sealer according to the manufacturer’s instructions and pour it on a paint tray.
  3. Apply an even coat of the sealer using a paintbrush along the edge and a roller for the rest of the surface. Avoid over-applying the sealer, as this can lead to a cloudy finish.
  4. Let each layer dry completely before applying the next layer. Check the instructions for the exact waiting time.
  5. After the final layer, it’s usually best to wait another 24-48 hours before allowing foot traffic over the surface.


Finally, it’s important to maintain your polished concrete surface. Sweep away debris regularly and buff the floor at least once a month. You can also apply wax to the floor every few months for added protection and shine.

Concrete Polishing: Why It’s Always Worth the Investment

Concrete polishing does more than make a floor look beautiful – it’s an investment that will extend the life of your surface. By strengthening the bonds between the concrete particles, you’re protecting your floor from stains, spills, and other contaminants.

It also provides many other practical benefits, such as:

  • Natural illumination. When polished, concrete floors reflect more light than untreated surfaces, making it a great way to naturally brighten up any area.
  • Less maintenance. The smooth surface leaves less room for dirt and debris buildup. You don’t have to worry about scrubbing or waxing as often.
  • Enhanced safety. The polishing process eliminates the cracks, divots, and other imperfections that can create tripping hazards.
  • Cost-effectiveness. Instead of wasting thousands on replacing flooring, you can simply polish your existing concrete surface to make it look new again.
  • Sustainability. Polished concrete does not require the use of solvents, adhesives, or other hazardous materials.

Your Trusted Source for Concrete Polishing in Orange County

Many people make the mistake of trying to polish their concrete floors on their own. Unfortunately, the results often don’t meet their expectations. They also put their flooring materials at risk of damage due to improper techniques.

If you’re looking for a reliable concrete polishing contractor, Epoxy Time is here to help. We’re a family-owned and operated business with over two decades of industry experience, and we use the latest tools, materials, and techniques to create a safe and long-lasting finish.

Contact us at (949) 822-8885 today for more information about concrete polishing and how we can help you achieve your desired luxurious high-gloss finish. Epoxy Time also offers concrete coating services with comprehensive warranties. We look forward to serving you!