Epoxy Coating Removal Process Workflow

Steps

1. 1

   Coating Assessment

   Identify coating type (epoxy, polyurethane, paint, adhesive) and thickness. Test adhesion strength by trying to chip with a scraper. Measure total area.

   Coating types by difficulty:\n- Thin paint (<2mm): Easy\n- Standard epoxy (2-5mm): Medium\n- Industrial epoxy (5mm+): Hard\n- Polyurea: Very Hard

2. 2

   Tool Selection

   Choose between PCD scrapers (fast but aggressive) and diamond segments (slower but more controlled). PCD for thick coatings, diamonds for thin or when preserving surface matters.

   Pro tip: PCD removes 10x faster than diamonds but can gouge soft concrete. Test a small area first.

3. 3

   Machine Setup

   Mount selected tooling. Set RPM to low-medium range (400-600 for PCD, 500-800 for diamond). Ensure dust collection is connected and working.

4. 4

   Removal Passes

   Work in overlapping passes. Keep machine moving — stopping creates divots. For thick coatings, take multiple shallow passes rather than one deep pass.

   Pro tip: If coating melts/smears instead of chipping, reduce RPM and increase water (if wet grinding).

5. 5

   Surface Prep After Removal

   Once coating is removed, switch to standard diamond segments for surface profiling. Target CSP 2-3 for new coating adhesion.

6. 6

   Quality Verification

   Check for remaining coating in low spots and edges. Verify surface profile with replica tape or visual comparison chart.

Tools Required