Background Challenges
During construction and maintenance, polished quartz tiles often develop hollowing issues caused by poor substrate preparation or long-term usage.
Traditional repair methods rely on large-area removal and reinstallation of tiles, which are time-consuming, labor-intensive, and generate additional costs and dust pollution at the job site.
Through the micro-drilling + resin injection repair method, technicians only need to drill tiny holes at the hollowed area and inject repair resin, significantly reducing the construction scope and cleanup time.
This method places high demands on the tools used—not only requiring precise micro-hole control but also high cutting force and long tool life to ensure stable machining on hard and brittle quartz tiles.
Solution
The repair process uses micro-hole drilling combined with injection of epoxy resin or polyurethane (PU) foam/resin, effectively restoring hollowed areas without removing or replacing entire tiles.
Process Steps
- Drill a small-diameter hole at the hollowed location.
- Use specialized equipment to inject repair resin evenly.
- Allow the resin to penetrate and fill the void, rebonding the hollow layer with the substrate.
- Finally, seal the hole and polish the surface to make the repair point nearly invisible.
Why Diamond Tools Are Necessary
Polished quartz and porcelain tiles have extremely high hardness (quartz hardness ≈ Mohs 7).
Traditional abrasive drill bits can easily cause chipping, out-of-round holes, or tile cracking.
Only diamond tools can ensure stable drilling quality on such hard-brittle materials.
Our Product
Besdia Electroplated Diamond Grinding Pins (for Construction Use)
Product Features / Performance
- Micro-diameter design: Common diameters Ø1.0–2.0 mm allow fast drilling, reduced tile breakage risk, and smaller, more concealed holes.
- Deep-hole capability: Effective cutting length up to 20-40 mm covers most tile thicknesses; custom specifications are available if needed.
- Durability and stability: Specially selected steel shank, heat-treated for enhanced elasticity and break-resistance.
- Customization: Diameter, cutting length, and diamond grit size can be tailored according to customer requirements to balance efficiency and aesthetics.
Product Advantages
- High-precision cutting: Uniform hole diameter with clean edges.
- Long service life: Electroplated diamond layer provides excellent wear resistance.
- Easy operation: Compatible with handheld tools and professional drilling machines.
Value Benefits
- Low invasiveness: Small-hole repair eliminates the need to remove entire tiles.
- High efficiency: Single-point repairs can be completed quickly, shortening the construction period.
- Excellent concealment: After sealing and polishing, repair marks are nearly invisible.
- Cost reduction: Avoids large-scale tile replacement and unnecessary material waste.
- Extended lifespan: Restores structural stability and reduces future maintenance risks.
Suitable Applications
- High-end residential and commercial flooring maintenance
- Shopping malls, hotels, airports, and other large-area polished quartz tile surfaces
- Public infrastructure maintenance—ideal where long construction downtime is not permitted
Recommendations
- Thin tiles / wall panels (3.5–6.5 mm thick): Recommended hole diameter Ø1.0–1.2 mm
- Standard indoor flooring (6–10 mm thick): Recommended hole diameter Ø1.2–1.4 mm
- Thick tiles / outdoor areas (12–20 mm thick): Recommended hole diameter ≥ Ø2.0 mm
- Operating tips: Use low speed, light pressure, and intermittent water cooling to reduce micro-cracks and chipping around the hole edges.