The EDCO QC2B-SC-0070 is a 70-grit Double Dyma-Dot diamond grinding tool for soft, abrasive concrete. Built for EDCO Magna-Trap floor grinders and turbo grinders with the magnetic quick-change disc system, it removes general purpose epoxy, mastics, thinsets, and waterproofing coatings while leveling the slab without gouging - the workhorse grit for surface prep contractors on green or coastal concrete.
Use Cases
- Removing thinset and mastic after tile or flooring demolition
- Grinding off general purpose epoxy and waterproofing coatings before recoating
- Leveling and profiling soft or green concrete to CSP 1-2 for new floor coverings
- Surface prep in coastal regions where abrasive aggregate eats standard-bond tooling
Specifications
- Grit: 70 (medium-coarse removal)
- Bond: Soft Concrete (yellow) - hardest bond, for abrasive, soft, or green concrete
- Style: Double Dyma-Dot, omni-directional
- Surface profile: CSP 1-2 finish with minimal scratch pattern
- Mounting: magnetic backing for Magna-Trap quick-change discs
- Fits: EDCO Magna-Trap floor grinders and turbo grinders
- Pack quantity: sold per dot; a typical grinder head runs 3
Frequently Asked Questions
What is the difference between soft concrete and hard concrete Dyma-Dots?
Bond hardness is matched opposite to the slab. Soft or abrasive concrete wears tooling quickly, so the soft-concrete (yellow) dots use the hardest bond to survive it. On hard, dense slabs use the hard-concrete bond instead so the diamonds stay exposed.
What will 70 grit remove?
70 grit handles general purpose epoxy, mastics, thinsets, and waterproofing coatings, and grinds concrete to a level, even surface without gouging. It leaves a CSP 1-2 profile suitable for most coatings and floor coverings.
How many Dyma-Dots does my grinder need?
Most Magna-Trap grinder heads run three dots spaced evenly around the disc. Replace them as a set so the head stays balanced and cuts flat.
Do these work on turbo grinders as well as floor grinders?
Yes. The magnetic backing snaps onto the quick-change discs used by both EDCO Magna-Trap floor grinder and turbo grinder models.
Discount Cleaning Products is an authorized EDCO dealer with US-based customer service. We stock genuine EDCO Magna-Trap tooling for contractors nationwide.