Quick Answer

Epoxy removal tools differ more in cost per square metre than in sticker price. Fast-change PCD shoes and PCD trapezoid discs cost $4-$28 per piece but strip 150-800 m²/hr; bush-hammer rollers run $15-$60 and texture rather than fully remove heavy buildup; metal-bond diamond shoes cost $1-$6 and finish what PCD starts; alloy-tipped planer teeth run cheap but wear fast on hard concrete. As indicative math, PCD tooling usually lands at $0.05-$0.15 per m² of coating removed, and a mixed program - PCD first pass, diamond follow-up - gives the lowest total cost on real projects.

The Five Tool Types Compared

Speed vs Tool Life: Why Sticker Price Lies

A cheap $2 diamond shoe looks unbeatable next to a $20 PCD disc - until you measure area. The $2 shoe glazes on epoxy and removes roughly 20 m² an hour; the $20 PCD disc clears 300 m² an hour. Labour and machine time are the big numbers on the job, so faster removal almost always wins on total project cost even when the tool itself costs ten times as much.

Hidden Costs That Change the Math

• Machine and operator time - the fastest tool wins when labour is your largest cost.
• Downtime for tool changes - fast-change shoes cut swap time from about 10 minutes to under a minute.
• Surface quality - PCD leaves aggressive scratches that must be cleared by the next grit pass; budget that follow-up in the program.
• Dust containment - faster removal needs a properly matched vacuum, or the crew rate drops.

Decision Rules: Match the Tool to the Floor

• Thick epoxy (1 mm+), glue beds, polyurethane: start with PCD trapezoid discs or fast-change PCD shoes like the Fast Change Bush Hammer Roller for Epoxy Floor Removing (JOY-BHP-FC) and the WerkMaster PCD Tooling for Epoxy Floor Removing (JOY-WM-PCD1S1).
• Edges and corners: PCD cup wheel or an angle-grinder bush-hammer plate such as the 5''/125mm Bush Hammer Plate with 3 Rollers for Angle Grinder (JOY-BHP-5BH).
• Heavy buildup on remote grinders: Piranha-style fast-change PCD like the Husqvarna Piranha PCD Tool for Concrete Floor Coating Removing (JOY-HQ-PCD2).
• Thin paint epoxy and fine cleaning: alloy teeth or coarse metal-bond discs - PCD would over-cut the surface.

Frequently Asked Questions

Q: Which is cheaper per square metre: PCD or diamond shoes?

A: On epoxy removal, PCD - indicative $0.05-$0.15/m² versus $0.20-$0.50/m² for diamond shoes that glaze and stall. The lowest-cost program is PCD for removal, then diamond for leveling.

Q: How fast does PCD actually remove epoxy?

A: As an indicative figure, 150-400 m²/hr on a 580 mm planetary grinder for medium epoxy; 700-900 mm remote machines reach 500-800 m²/hr on open floors. Coating thickness and concrete hardness swing the number.

Q: Do bush hammers remove epoxy or just texture it?

A: Mostly texture - bush hammers crack and roughen coatings rather than shear them off. They pair well after PCD for a uniform scratch profile, or for anti-slip texture work.

Q: Can one tool handle both thin and thick epoxy?

A: Not optimally. Full-face PCD clears thick buildup but over-works thin films; 2-3 segment PCD handles medium coatings. Budget one set per thickness band - the reorder quantity is where volume pricing helps.

Conclusion

Efficiency and cost meet in one number: cost per square metre of coating actually removed. PCD leads the removal stage, diamond leads the leveling stage, and the right mix - not the cheapest sticker price - wins the project. Send JOY TECH your coating type and machine list; the factory will model the tool sequence and indicative cost per square metre for your floor.