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Remove Old Coatings That No Longer Perform

Coating removal and surface preparation services using diamond grinding and sanding in Green Bay, Wisconsin by RJ Floor Coating LLC.

When a coating on your garage or basement floor in Green Bay begins to peel, chip, or wear through in patches, it no longer protects the concrete underneath. Applying a new coating over a failing one traps moisture, prevents proper adhesion, and leads to premature failure of the new system. Removing the old coating and preparing the surface correctly ensures the new installation lasts.

RJ Floor Coating LLC removes outdated or failing coatings using diamond grinding and sanding techniques that are standard in the industry. The process strips away old material, opens the pores of the concrete, and creates the surface profile needed for proper adhesion. This prep work is required for warranty support on most coating systems and is the most important step in ensuring long-term performance.

If your floor has an old coating that needs to come off before a new system is installed, reach out to discuss a prep evaluation in Green Bay.

What proper surface preparation involves

Surface preparation in Green Bay begins with diamond grinding equipment that removes old coatings, contaminants, and weak surface layers from your concrete. RJ Floor Coating LLC uses different grit levels depending on the condition of the floor and the type of coating being removed. Sanding and profiling follow to create the texture needed for the new coating to bond securely.

After the old coating is removed, your floor will have a clean, textured surface free of the peeling, discoloration, and uneven wear that was present before. The concrete is ready to accept a new coating system, and the prep work ensures the new coating adheres properly and performs as designed. The floor no longer traps moisture or contaminants that could compromise the new installation.

Proper surface prep takes time and requires industrial-grade equipment, but it is the only way to ensure the new coating performs correctly and lasts for years. Skipping this step or using inadequate methods leads to coating failure, voided warranties, and the need for costly rework. The process generates dust, so containment and ventilation are managed during the work.

Surface prep often brings up practical concerns

Customers in Green Bay frequently ask about how long prep work takes, what equipment is used, and why removal is necessary instead of coating over the old layer. Here are answers that explain the process.

Black diamond-shaped logo with abstract crack-like lines inside, set on a smaller downward-pointing black V shape.
What is diamond grinding?
Diamond grinding uses rotating discs embedded with industrial diamonds to remove coatings, smooth uneven concrete, and create a surface profile that supports strong adhesion. It is a standard method for professional surface prep.
Black diamond-shaped logo with abstract crack-like lines within a square, set on a downward-pointing triangle.
Why can't you just coat over the old coating?
Coating over a failing system traps contaminants, prevents proper bonding, and causes the new coating to fail prematurely. Removal ensures the new system adheres directly to the concrete.
Black diamond shape with an abstract design inside, sitting atop a smaller, inverted diamond.
How long does coating removal take?
Coating removal in Green Bay typically takes one to two days depending on the size of the floor and the thickness of the old coating. The timeline also depends on how much repair or leveling is needed afterward.
Black diamond-shaped logo with abstract vein-like pattern inside a square and a V-shape.
What happens to the dust during grinding?
RJ Floor Coating LLC uses dust containment equipment to minimize airborne particles during grinding. Ventilation and cleanup are part of the process to keep the work area manageable.
Black and white logo featuring a diamond shape with a cracked pattern inside and a smaller diamond on top.
Why is surface prep critical for warranty support?
Most coating manufacturers require proper surface preparation to validate their product warranties. Without it, coating failures are not covered, and the work must be redone at your expense.

If your floor has an old or failing coating, RJ Floor Coating LLC can remove it and prepare the surface for a new system that performs reliably. Contact us to schedule a surface prep evaluation in Green Bay.