Lavina Yellow QC Metal Bond
Lavina Yellow QC metal bond diamonds are formulated to grind soft concrete under 2,500 PSI.
Available in:
- Button and Rectangular Configurations
- Single and Double Segment options
- Grits Range from 14 to 120
Lavina Yellow QC Metal Bond Designed for Soft Concrete
Soft concrete is highly abrasive and can wear through diamond tooling quickly. For concrete under 2,500 PSI, Lavina Yellow QC metal bonds provide a harder bond designed to withstand these conditions and help extend tool life.
Matching the right segment configuration and grit to the floor also affects cutting speed, tooling wear, and the scratch pattern left on the concrete.
Segment Configurations and Grits
Lavina Yellow QC metal bond diamonds are available in four configurations:
- One Button
- Two Button
- One Rectangular Segment
- Two Rectangular Segments
Each configuration is available in 14, 30, 50, 70, and 120 grit.
Choosing the Right Configuration
- Single-segment tools: Recommended for lighter machines under 30 inches. They provide a more aggressive cut and are also recommended for the first grinding step on larger machines when faster surface opening is desired.
- Double-segment tools: Recommended for heavier machines 30 inches and larger. Additional segments provide greater surface contact and help refine the scratch pattern.
Fewer segments generally cut faster but wear more quickly. Tool life varies with concrete hardness and surface conditions.
Coating Removal
Segment shape also matters when removing existing coatings:
- Round button tools: Recommended for cementitious coating removal.
- Rectangular bar tools: Recommended for non-cementitious coating removal.
Grinding Recommendations
For best results, match the tooling configuration to the grinder size, concrete conditions, and grinding stage. Run metal bond tooling at low RPM.
Use Lavina QC tooling with Lavina Security Plates for safe operation.
Not sure which bond is right for the floor? A Mohs Hardness Scratch Test Kit can help identify concrete hardness before selecting tooling.
Lavina Bond Selection Reference
| Lavina Series | Concrete Hardness | Mohs Scale |
|---|---|---|
| Yellow | Soft, under 2,500 PSI | 2–3 |
| Grey | Medium, 2,500–4,000 PSI | 3–5 |
| Red | Hard, 4,000–5,500 PSI | 5–6 |
| Gold | Extra Hard, 5,500–7,000 PSI | 7 |
| White / Black Cap Cutters | Super Hard, 7,000–9,000 PSI | 8–9 |





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