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Prep and Repair · 2 min read

Removing Epoxy, Glue and Mastic Before Polishing

What can be ground, what must be scraped and when testing is wise.

  • Plain-English guide
  • 2 min read
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Removing Epoxy, Glue and Mastic Before Polishing

Thin coatings

Paint and thin sealers grind off with the right diamonds.

Thick coatings and glue

Thick epoxy and mastic clog tools. Scrapers lift the bulk, then grinding cleans up the rest.

Older buildings

Some old adhesives and floor tiles may contain hazardous materials. Test before grinding in older buildings.

Dust

Removal creates dust. Use extraction and containment.

Why coatings must go

Polishing needs bare concrete. Leftover coatings or glue smear under the tools, clog pads and leave patchy shine.

Methods

Aggressive diamond tooling, specialty scrapers and shot blasting can all remove coatings. The best method depends on the thickness and the slab condition.

Hazards in older floors

Some older mastics and tiles may contain hazardous materials. If the age of the building suggests this, testing is needed before any grinding begins.

Quick answers

Can all coatings be removed?

Almost all can, with time and the right tools.

Will removal leave marks?

Often. Grinding and repair address them.

Put it to work

Related services.

Epoxy, Adhesive and Mastic RemovalP-04Prep & RepairCoating & Adhesive RemovalOld coatings, tile glue and black mastic removed cleanly so the slab can shine.See the service Diamond Grinding and Concrete Surface PreparationP-01Prep & RepairDiamond GrindingThe step that decides the result: grinding the surface flat, clean and ready.See the service

More guides

Concrete Cracks and Joints: A Practical GuideGUIDE 24 · Prep and RepairConcrete Cracks and Joints: A Practical GuideWhy slabs crack, which cracks matter and how they are repaired before polishing.2 min read Concrete Moisture and Vapor in Florida SlabsGUIDE 25 · Prep and RepairConcrete Moisture and Vapor in Florida SlabsWhy moisture testing matters here, how it is done and what the results mean.2 min read Slab Flatness and Levelness ExplainedGUIDE 27 · Prep and RepairSlab Flatness and Levelness ExplainedTwo different measures, why gloss reveals both and what can be corrected.2 min read
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  • Slab tested firstHardness, moisture and condition decide what is realistic.
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