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Surface Prep: How Industrial Concrete Grinders Enhance Coating Adhesion

Due to its durability and ability to last for years with proper care, concrete is a popular choice for industrial flooring. However, concrete surfaces can become rough or uneven following age and wear.

This can make it difficult for coatings like paint or epoxy to properly adhere, leading to an inferior finish or even complete failure of the coating. Industrial concrete grinders are a reliable tool for prepping concrete surfaces, creating the perfect surface for coatings to adhere and last.

In this article, we will delve into the numerous benefits of utilizing an industrial concrete grinder for efficient and effective surface preparation. By exploring the advantages of these cutting-edge tools, you will gain valuable insights into how it can streamline your concrete surface preparation process and deliver exceptional results.

What Is Surface Preparation and Adhesion?

Surface preparation and adhesion are two of the most important factors in any coating process.

Surface preparation involves cleaning, scraping, sanding, etching, or otherwise preparing a concrete surface for the application of coatings or sealants. Adhesion is simply how strongly the coating sticks to the substrate it is applied to.

The Importance of Surface Preparation and Adhesion

When it comes to industrial concrete surfaces, surface preparation is essential. Properly preparing a concrete surface before the application of coatings or sealants ensures that the coating sticks and adheres properly, delivering optimal performance and longevity. Without proper surface preparation, coatings may fail due to inadequate adhesion and could cause costly repairs down the road.

One of the most effective ways to prepare a concrete surface is with an industrial concrete grinder. Industrial concrete grinders are powerful tools designed to quickly and efficiently remove layers of concrete, preparing the substrate for coatings or sealants.

What Are Some Other Benefits of Preparing Concrete Surfaces?

In addition to enhancing the performance and longevity of coatings, preparing concrete surfaces also helps protect against environmental damage. A properly prepared concrete floor can resist water infiltration, alkali-aggregate reaction (AAR), and freeze/thaw cycles more effectively than one that is not properly prepared or adhered to. This can help extend the life of the concrete surface and prevent costly repairs.

How Concrete Grinders Improve Coating Adhesion

First of all, grinders also have the potential to remove contaminants that may be present on the substrate surface of your concrete, such as oil, grease, and dirt. These contaminants create poor adhesion and a weak boundary layer. Removing these contaminants is essential for creating a clean surface that will allow for optimal adhesion of coatings.

Second, concrete grinders can be used to level out any surface imperfections that could affect the performance and longevity of coatings. Uneven surfaces can cause coatings to crack or peel prematurely, leading to costly repairs down the road. By leveling these areas with a grinder before coating application, you are setting your surface up for the best possible adhesion and performance.

What Does the Process Look Like?

The process of preparing a concrete surface with industrial concrete grinders is fairly straightforward. The first step is to clean the surface and remove any contaminants, such as oil, grease, dirt, or debris.

This should be done before using the grinder so that the contaminants are not spread around during grinding. Once this is done, you can begin grinding the surface to create a level and even surface. This is typically done with multiple passes of the grinder, with each pass removing more and more material until the desired result is achieved.

What Kind Of Grinder Should I Use?

When it comes to selecting the right grinder for your surface preparation needs, there are a few things to consider.

You should select a grinder that is powerful enough to quickly and efficiently remove layers of material without over-polishing or creating dust. Additionally, you may want to consider a grinder with variable speed control, which can help prevent gouging or otherwise damaging the surface.

Grinders such as Onfloor's OF16Pro are designed to quickly remove material while also delivering superior results in terms of adhesion, performance, and longevity.


  • Look for a grinder that is powerful enough to quickly and efficiently remove material.
  • Look for one with variable speed control, which can help prevent gouging or damaging the surface.
  • Consider a grinder that has special features such as dust collection or integrated vacuums, which can make cleanup easier.

What Kind of Grinding Wheels Are Best Suited for This Project?

When grinding concrete surfaces, diamond grinding wheels are the best option. These wheels are designed to cut through tough materials like concrete with ease. Diamonds on the surface of the wheel also help to create a smoother and more even finish than other types of concrete grinding wheels.

For most jobs, heavy-duty metal bond diamond cup grinders will provide the best results. These grinders are designed to handle the toughest materials and can be used for both wet and dry grinding applications.


How do I know if a concrete grinder is suitable for my project?

The answer to this question will depend on the size and scope of your project. Industrial concrete grinders are designed for larger, commercial-scale construction projects that require high levels of surface preparation.

These machines can be used to grind away layers of concrete, making them ideal for preparing surfaces before applying either coatings or sealants. It is important to select a machine that is suitable for the size and scope of your project, since using an undersized or oversized machine can lead to suboptimal results.

What type of coatings can be applied after using a concrete grinder?

Any type of coating or sealant can be applied after a concrete grinder has been used to prepare the surface. It is important to select the right product for your application and to follow all safety instructions provided by the manufacturer. Additionally, we recommend that you  thoroughly clean any areas before applying coatings so that you can achieve optimal adhesion.

How do I ensure good adhesion when applying coatings?

Good adhesion is essential for ensuring optimal performance and longevity of coatings. To achieve the best possible chemical adhesion, you need to start with a clean surface that has been prepared with an industrial concrete grinder.

By removing contaminants and leveling any imperfections, you are creating a substrate that will allow the coating to bond properly and achieve a strong adhesion. However, you need to follow all safety instructions provided by the coating manufacturer to ensure the safe application of any coatings.

Are there any safety considerations when using a concrete grinder?

Yes, you need to take several safety considerations into account when operating an industrial concrete grinder. It is important to always wear protective gear (such as eye protection, gloves, and a dust mask) when operating the machine.

Additionally, it is important to ensure that the area around the grinder is kept clear of debris and bystanders. Finally, it is important to read and follow all instructions provided by the manufacturer to ensure safe operation of the machine.

What is the best way to maintain and store industrial concrete grinders?

Maintaining and storing industrial concrete grinders is essential for ensuring optimal performance over their lifespan. You need to regularly inspect the machine for any wear and tear, as well as clean out any dust or debris that has built up in the machine or grinding wheel. On top of that, it is important to store the machine in a dry and temperature-controlled environment when not in use.


How long does surface preparation take?

The amount of time needed for surface preparation will depend on the size and scope of the project. Generally speaking, larger projects can take several hours or even days to complete, while smaller projects may be completed in less than an hour.

Additionally, factors such as the type of grinder being used and the size of the area to be prepared can also affect the length of the project. Therefore, it is important to consider all of these factors when estimating the amount of time needed for surface preparation.

What if I don't complete surface preparation?

Failing to properly prepare a surface before coating can lead to suboptimal results and even damage. Without the proper preparation, coatings may not adhere properly or bond correctly.

In addition, any contaminants on the surface will be sealed in by the coating and can cause issues such as bubbling or chipping over time. Therefore, it is essential that you take the time to properly prepare any surface before coating.


Surface preparation is a critical step in ensuring the longevity and performance of applied coatings. Industrial concrete grinders are an essential tool for achieving the desired result when dealing with concrete surfaces.

By selecting the right grinder and grinding wheels, as well as following all safety instructions, you can quickly and easily achieve the surface texture and adhesion that you want. Furthermore, proper storage and maintenance of the grinder will help to ensure its longevity over time.

By taking the time to complete surface preparation with an industrial concrete grinder, you can rest assured that your coatings will look great and last longer!

Have questions about concrete grinding? Be sure to check out the rest of our blog, which is filled from top to bottom with expert advice. When you’re ready to take your concrete grinding technology to the next level, our team at Onfloor is always ready to help.