The EDCO DYMA-SERT 3X Hard Matrix #19180 is a 30-40 grit diamond segment insert built for contractors working on soft, abrasive concrete where standard tooling burns through diamonds too fast. Each Dyma-Sert consists of diamond segments welded to a durable backing plate, a design that grinds up to 5 times faster than traditional grinding stones and delivers up to 30,000 square feet of grinding life on standard 3,500 PSI concrete. The 3X Hard Matrix bond is engineered to hold its diamonds longer on aggressive, abrasive slabs, exactly the conditions that chew through softer-bonded segments in a fraction of the coverage.
Built for these use cases
- Soft or highly abrasive concrete slabs - coastal, sedimentary-aggregate, or under-cured concrete that wears out standard bonds prematurely
- Aggressive coating removal - stripping urethane and epoxy coatings, thick mastics, and thin-sets down to bare concrete
- Surface leveling and repair - smoothing trowel marks, leveling high spots, and repairing surface damage on slabs before coating or polishing
- Terrazzo and sharp-aggregate grinding - cutting through hard aggregate like flint and granite embedded in the slab
- Wet or dry grinding jobs - the segment design runs in either mode without a change in setup
Specifications
- Matrix hardness: 3X Hard Matrix bond
- Grit: 30-40 grit diamond segment
- Segment type: Diamond segments welded to a backing plate insert
- Rated life: up to 30,000 sq. ft. of grinding on standard 3,500 PSI concrete
- Compatible mode: wet or dry grinding
- Fit: Magna-Trap wedgeless tool holder (also compatible with classic wood-wedge holding cases)
Why would I choose the 3X Hard Matrix over EDCO's medium or general purpose Dyma-Sert?
Matrix hardness and concrete hardness work in opposite directions: soft, abrasive concrete wears down diamond segments quickly, so it needs a harder bond to slow that wear and keep diamonds exposed longer. EDCO's General Purpose and Medium Matrix Dyma-Serts use softer bonds intended for harder, denser concrete. The 3X Hard Matrix #19180 is the step up for soft or abrasive slabs where a softer bond would burn through diamonds in a fraction of the expected coverage.
How do I know if my concrete needs a hard-bond segment like this one?
If a job is producing coarse, gritty dust quickly, or if you've run softer-bonded tooling on the slab before and worn through diamonds well short of expected square footage, that's a sign the concrete is on the soft/abrasive end and calls for a harder bond. Coastal-area and lower-PSI or under-cured concrete commonly fall into this category.
What happens if I use the wrong matrix hardness?
Using a bond that's too soft for the concrete causes the diamonds to wear away rapidly, sometimes cutting tool life to a small fraction of rated coverage. Using a bond that's too hard for the concrete can cause the opposite problem: the matrix doesn't wear fast enough to expose fresh diamond, so the segment glazes over and stops cutting effectively. Matching matrix hardness to slab hardness is the main factor in getting full life out of the tooling.
Will the 19180 Dyma-Sert fit my grinder?
Dyma-Sert inserts are designed for EDCO's Magna-Trap tool holder system. They work in the newer wedgeless holding case as well as the classic wood-wedge style holding case, so they're compatible across both Magna-Trap holder generations.
Can this segment be used for both coating removal and surface prep?
Yes. The 3X Hard Matrix is rated for aggressive material removal, which covers stripping urethane and epoxy coatings, mastics, and thin-sets, as well as general surface prep tasks like smoothing trowel marks, leveling high spots, and grinding terrazzo or sharp aggregate.
Discount Cleaning Products is an authorized EDCO dealer stocking genuine Dyma-Sert diamond tooling and Magna-Trap accessories, backed by US-based customer service for product and compatibility questions.
