Oem White Quartz Bathroom Countertops
OEM White Quartz Bathroom Countertops
White quartz countertops are engineered stone panels composed of approximately 90‑95% ground natural quartz crystals blended with polymer resins and pigments. This composition yields a non‑porous surface with consistent coloration and minimal variation across slabs.
Material Composition and Properties
The resin binder typically accounts for 5‑10% of the mass, providing flexibility and impact resistance while maintaining a high modulus of elasticity. Typical mechanical values include a compressive strength of 180‑220 MPa, flexural strength of 45‑55 MPa, and a modulus of elasticity around 20 GPa.
Water absorption measured per ASTM C97 is usually below 0.05 %, which eliminates staining and inhibits microbial growth. The density ranges from 2.2 to 2.4 g/cm³, contributing to a solid feel underfoot and resistance to impact cracking.
Thermal expansion coefficient is approximately 25 × 10⁻⁶ / °C, similar to many ceramics, allowing the material to withstand typical bathroom temperature cycles without significant stress buildup.
Manufacturing Tolerances and Fabrication
Slabs are produced in standard thicknesses of 12 mm, 20 mm, and 30 mm with thickness tolerance of ±0.5 mm. Length and width tolerances are typically ±2 mm for cut‑to‑size panels, ensuring tight joints when installed.
Edge profiling options include eased, beveled, bullnose, and ogee profiles, each achievable with CNC routers to a profile tolerance of ±0.2 mm. Surface finish is polished to a gloss level of 80‑90 % as measured by a glossmeter at 60° incidence.
Cut‑outs for faucets, sinks, and accessories are machined with water‑jet or CNC milling, maintaining positional accuracy within ±0.3 mm to prevent misalignment during installation.
Typical Applications in Bathroom Environments
- Vanity tops – resistant to water splashes, cosmetics, and cleaning agents.
- Shower walls and surrounds – non‑porous surface prevents mold ingress and simplifies cleaning.
- Bathtub decks – provides a seamless, hygienic ledge that tolerates thermal cycling.
- Backsplashes – thin‑set installations benefit from low expansion and high bond strength to adhesives.
Customization Options
- Slab dimensions – custom lengths up to 3200 mm and widths up to 1600 mm available upon request.
- Edge treatments – eased, beveled, bullnose, ogee, waterfall, and custom profiles.
- Surface finishes – polished, honed, leathered, or brushed textures.
- Color and veining – while the base is white quartz, subtle veining or speckle patterns can be introduced via pigment blending.
- Integrated features – pre‑drilled faucet holes, sink cut‑outs, and back‑plumbing channels.
Quality Assurance and Testing
Each batch undergoes raw material inspection for quartz purity and resin viscosity. In‑process controls monitor slab thickness, color uniformity, and cure time via infrared sensors.
Finished slabs are evaluated for flexural strength (ASTM C158), water absorption (ASTM C97), and surface hardness (Mohs scale 6‑7). Visual inspection checks for defects such as pits, discoloration, or resin spots under 500 lux illumination.
Documentation includes material safety data sheets (MSDS), test certificates, and traceability labels linking each slab to its production lot.
Technical Specifications
| Property | Typical Value | Test Method |
|---|---|---|
| Compressive Strength | 180‑220 MPa | ASTM C170 |
| Flexural Strength | 45‑55 MPa | ASTM C158 |
| Water Absorption | <0.05 % | ASTM C97 |
| Density | 2.2‑2.4 g/cm³ | ASTM C97 |
| Thermal Expansion Coefficient | 25 × 10⁻⁶ / °C | ASTM E228 |
| Surface Hardness (Mohs) | 6‑7 | Scratch Test |
Frequently Asked Questions
Can dimensions be customized for specific OEM projects?
Yes. Length, width, thickness, and cut‑out locations are adjustable to match fixture layouts. Provide CAD drawings or detailed sketches for quotation.
What information is required before a quotation can be issued?
Project specifications including slab size, edge profile, finish type, quantity, and any required cut‑outs or holes. Lead time depends on complexity and current production load.
How is quality inspected before shipment?
Each slab undergoes visual inspection under controlled lighting, dimensional verification with calibrated calipers, and mechanical testing on a representative sample from the batch.
What packaging methods are used for export shipments?
Slabs are packed in vertical wooden crates with corner protectors, foam interleaving, and moisture‑barrier film. Crates are strapped and marked with handling instructions.
Contact for OEM Inquiry
To discuss technical requirements, request samples, or obtain a detailed quote, please reach out via our contact form. Our engineering team will review your specifications and respond with feasible options and lead times.
