Removing an Old Garage Floor Coating (The Right Way)

Removing an Old Garage Floor Coating (The Right Way)

Whether it's failed DIY paint or an old commercial epoxy, removing a coating cleanly is what makes the next one last.

Shot Blasting vs Grinding

Shot blasting throws steel shot at the floor to break the coating bond — fast for large open spaces. Diamond grinding cuts down through the coating — precise for edges, garages, and detailed work.

Why Chemical Strippers Rarely Work for Pros

Stripper softens coatings but leaves adhesive residue that contaminates the next install. Pros almost always mechanically remove instead.

Dust Control

Every removal method throws dust. Professional installers run HEPA vacuum extraction on grinders and containment for shot blasting. Never accept a dry install without dust control.

What's Left After Removal

Bare concrete with a proper concrete surface profile — CSP-3 or higher. That's the surface a new coating needs to bond permanently.

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