Coating removal
PCD or aggressive metal tooling first, then metal bond cleanup.
Ask for a before/after scratch photo from the test pass.
Blastrac BG250 crews need tooling matched to attachment fit, concrete hardness, application, and order risk. This page gives a practical starting point before you request a quote.
| Machine | Attachment | Working class | Best-use jobs |
|---|---|---|---|
| Blastrac BG250 | Adapter Plate | 250 mm / Small-area grinder | patch prep, small rooms, edge cleanup |
| Floor hardness | Bond | Opening grit | Why |
|---|---|---|---|
| Mohs 1-2 | Hard | #30 / #16 | Controls wear on soft or green concrete. |
| Mohs 3-4 | Medium | #40 | Balanced cut speed for general commercial slabs. |
| Mohs 5-6 | Soft | #50 | Exposes fresh diamond faster on dense concrete. |
| Mohs 7+ | Extra Soft | #80 | Reduces glazing on very hard aggregate. |
PCD or aggressive metal tooling first, then metal bond cleanup.
Ask for a before/after scratch photo from the test pass.
Use the bond table by floor hardness and keep passes even.
Move to the next grit only after scratches are consistent.
Avoid skipping transition grits before resin pads.
Confirm the floor is flat before moving into higher grits.
Prioritize stable scratch profile and predictable tool life.
Choose a conservative first set when hardness is unknown.
Request adapter plate confirmation and a test set when moving between patch repair and full-room prep.
Start from floor hardness: hard bond for Mohs 1-2, medium for Mohs 3-4, soft for Mohs 5-6, and extra-soft for Mohs 7+.
Send the grinder model, tooling plate photo, and current holder condition so attachment fit can be checked before the order moves forward.
For qualified orders, request inspection photos or video covering label, segment height, quantity, packing count, and shipment mark.