The EDCO QC1B-SC-0070 is a 70-grit single diamond grinding disc used as the critical middle step in the concrete grinding and polishing sequence. After a coarse 30-grit pass, the 70-grit disc removes the scratch pattern the coarse tooling leaves behind and prepares the slab for a 120-grit refining pass. Skipping this step leaves visible swirl marks in the finished floor, which is why 70-grit tooling belongs in every polishing kit.
Built for the concrete polishing progression
- Removing 30-grit scratch marks before moving to 120-grit refinement
- Concrete polishing and surface-prep contractors running a stepped grit sequence
- Refining floors on EDCO Magna-Trap single-disc grinders and compatible machines
- Prepping slabs for densifier, coatings, or a polished-concrete finish
Specifications
- 70-grit diamond grinding disc, single-segment design
- Used between 30-grit and 120-grit steps in the grinding sequence
- Designed for EDCO Magna-Trap single-disc floor grinders
- Diamond tooling removes material faster than abrasive stones
Frequently asked questions
Where does 70-grit fit in the grinding process?
It is the intermediate step: run 30-grit first, then 70-grit to remove the coarse scratch marks, then 120-grit to refine the surface.
What machine is this disc for?
It is made for EDCO Magna-Trap single-disc floor grinders and compatible grinding machines.
Why not skip straight to a fine grit?
Skipping the 70-grit step leaves the deep 30-grit scratch pattern in the slab, which shows through the finished floor. Each grit removes the scratches left by the previous one.
Are diamond discs better than abrasive stones?
Diamond tooling removes material faster and lasts longer than standard abrasive stones, which lowers cost per square foot on larger jobs.
Discount Cleaning Products is a stocking source for EDCO grinding and surface-prep tooling with US-based support. Add the QC1B-SC-0070 70-grit disc to your kit so every polished floor comes out swirl-free.