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Experienced & Reliable Epoxy Flooring &

Concrete Polishing Contractors since 2014

Bay Area Polished Concrete Flooring Done Right...

We provide professional

concrete flooring services.

About Us

We are the #1 Bay Area Epoxy Flooring, Concrete Polishing, Concrete Sealing, and Concrete Staining services providers.  Started in 2014, we've delivered on time and within budget 98.7% of the time.  We care about our clients and value their time and cost.  We look to be the one-stop shop and on-site experts in the field of concrete flooring.

Success Rate
Ontime & Within Budget

98.7%

GC Partners

48

Projects Completed

*as of 2023

1547
Concrete Finishing
Founder C*Rock Finishing

We provide professional concrete flooring services.

About Us

We are the #1 Bay Area Epoxy Flooring, Concrete Polishing, Concrete Sealing, and Concrete Staining services providers.  Started in 2014, we've delivered on time and within budget 98.7% of the time.  We care about our clients and value their time and budgets.  We are your one-stop shop and on-site experts in the field of concrete floor finishing and coatings.

Success Rate
Ontime & Within Budget

98.7%

GC Partners

48

Projects Completed

*as of 2023

1547
Founder C*Rock Finishing

Founder - Anthony Z.

FAQ: What is Polished Concrete Flooring?

Concrete Polishing is the act of mechanically densifying the concrete surface so tight that it's sealed unto itself. Mechanically polishing concrete is basically using metal, ceramic, and resin bonded diamonds in incremental steps, from course to fine, with chemical treatments, sealers, and patching products, to polish the concretes surface.  

Types of Polished Concrete Flooring

There are essentially 3 types of Concrete Flooring finishes produced. When considering finishes, it's always best to consider the higher the finish level the more upfront cost but lower lifetime/maintenance cost.  All concrete polishing is a life-time finish, but higher higher level finishes require less consistent maintenance. Higher the finish, higher the sheen/gloss, but lower level finishes are great and more than adequate for most spaces.

Industrial Finish

Working up to about a 400-800 grit finish, the Industrial Finish provides a smooth life-time floor ready for use. With a lower sheen and modern finish this is a perfect look for commercial or residential spaces with light or regular foot traffic and use.

Highly Abrasion Resistant
Highly Durable
Eco-Option/LEED Certified
Highly Spill Resistant
Easy Clean Up & Maintenance
Low Lifetime Cost

Commercial Finish

Working up to about a 1500 grit finish, the Commercial Finish provides a commercial grade densely sealed life-time floor with a more mirror like finish ready for use. This is a modern finish which is perfect for commercial or residential spaces with regular and sometimes heavy foot traffic and use.

Highly Abrasion Resistant
Highly Durable Life-Time Floor
Eco-Option/LEED Certified
Highly Spill Resistant
Easy Clean Up & Maintenance
Lower Lifetime Cost

Premium Finish

Taking the polish up to about a 3000 grit finish, the Premium Finish provides a fully self sealed life-time concrete floor with mirror like finish. This brilliant modern finish is perfect for high-traffic spaces, spaces which would benefit from the longest times between maintenance, or places which are looking for a premium look and feel.

Highly Abrasion Resistant
Highly Durable Life-Time Floor
Eco-Option/LEED Certified
Highly Spill Resistant
Easy Clean Up & Maintenance
Lowest Lifetime Cost

Types of Aggregate Exposure Level

With polished concrete, there are essentially 4 aggregate exposure levels. As the concrete is profiled deeper, more aggregate is exposed, creating different looks. Each desired look depends on concrete.  **No set concrete aggregate exposure can be controlled for 100%**

Cream Cut
Great for Stained Area
Uniform Coloring (No Finish is Ever 100% Uniform)
**Not possible on certain types of refinishing**
Salt & Pepper Cut
Scattered Size Exposure
Scattered Look for Unique Finish
Less Time Consuming
Great for Staining
Med. Aggregate
Larger Scattered Look
More Regular Exposure Size
Can be Time Consuming
Great for Staining
Lrg. Aggregate
Noticeably Unique Look
Large Scattered Terrazzo Type Look
Can be Time Consuming
Great for Staining

What is the process of Polished Concrete Flooring?

Concrete polishing involves a series of steps to properly finish.  The amount of steps depends on substrate condition, type of finish, ect...  The process can vary from 10-18 steps.

Step 1: Mechanically grinding the surface using metal bonded diamonds to open it up. (typically 1-3 passes across the space)

Step 2: Patching and filling cracks and imperfections as needed.

Step 3: Grinding the patch work with metal or ceramic bonded diamonds to uniform the substrate. (typically 1-2 passes as needed)

Step 4: Honing the surface using ceramic or hybrid bonded diamonds to remove deeper scratches within the surface. (typically 1-3 passes as needed)

Step 5: Applying a densifier, such as lithium silicate or calcium silicate, to the substrate and allowing it to cure.  

Step 6: Polishing the surface using resin bonded diamonds. (typically 3-5 passes as needed)

Step 7: Applying a penetrating sealant to the substrate to fill micro-pores and added protection.

Step 8: Burnishing of the penetrating sealant layer to properly cure into place.

The number of steps can vary based on the desired durability of the floor.  Factors influencing the number of steps and time required for each step include substrate condition, weather conditions, and types of concrete.

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