Complete material data, certifications, test results, and installation requirements. Everything you need to specify Hanstone Quartz with confidence.
All values based on internal testing per ASTM and EN standards unless noted. Results may vary by collection.
| Property | Value / Range | Test Standard | Notes |
|---|---|---|---|
| Quartz Content | 93–95% by weight | Internal XRF analysis | Remainder: polymer binder and pigments |
| Surface Hardness (Mohs) | 7.0 typical | ASTM C1895 | Harder than marble (3.5–5); comparable to granite |
| Flexural Strength | 38–44 MPa | ASTM C880 | Varies by color due to pigment loading |
| Compressive Strength | 220–260 MPa | ASTM C170 | |
| Water Absorption | < 0.04% by weight | ASTM C97 | Non-porous; no sealing required |
| Scratch Resistance (Vickers) | HV 1,050–1,200 | ISO 6507 | Resistant to steel knives; avoid diamond-edge tools on surface |
| Stain Resistance | Pass — Class A | EN 14617-4 | Tested vs. coffee, wine, mustard, lemon juice (24h contact) |
| Chemical Resistance | Pass — Class A | EN 14617-10 | Resistant to household acids/bases; avoid HF and strong oxidizers |
| Heat Resistance | Up to 150°C (302°F) | Internal test | Sustained heat above 150°C may cause discoloration; use trivets |
| UV Resistance | Good (indoor) | ASTM D4329 | Not designed for prolonged direct outdoor UV exposure |
| Linear Thermal Expansion | 21 × 10⁻⁶ /°C | ASTM E228 | Expansion joints required for runs > 3m in high-temperature environments |
| Density | 2.36–2.42 g/cm³ | ASTM C97 | ~15–18 kg/m² at 2cm; ~22–27 kg/m² at 3cm |
Published values represent the typical production range. Individual batches may fall within ±10% of published values. For critical structural calculations, contact our technical team for collection-specific test certificates.
Hanstone Quartz specifications are available in CSI 3-part format for project specifications and architectural documents.
Section: 12 36 40 — Stone Countertops
Food Equipment Materials
Verifies Hanstone Quartz does not leach chemicals into food at concentrations above allowable limits. Required for healthcare food-prep areas, restaurant counters, and commercial kitchens.
Certificate No.: NSF-51-HS-2019
Renewed: 2024
Low Chemical Emissions (UL 2818)
Certified for low VOC and chemical emissions. Enables specification in LEED v4.1 (IEQ Credit 2) and WELL Building Standard material calculations.
Certificate No.: GG-UL-2818-HS-042
Renewed: 2025
Quality Management System
Manufacturing processes audited annually by Bureau Veritas. Covers raw material procurement, production process control, quality inspection, and shipment verification.
Registrar: Bureau Veritas
Renewed: 2024
| Format | Dimensions | Notes |
|---|---|---|
| Standard | 3050 × 1440 mm (120" × 56.5") | Most widely available |
| Jumbo | 3200 × 1600 mm (126" × 63") | Select collections only |
| Thickness | Use Case | Approx. Weight/Slab |
|---|---|---|
| 20mm (3/4") | Wall cladding, light-duty | 47–49 kg |
| 30mm (1-1/4") | Countertops (standard) | 70–73 kg |
Edge profiles are applied by your fabricator. Confirm available profiles with your authorized Hanstone dealer.
Cabinets must be level within 3mm over 3 linear metres. Spans exceeding 800mm without cabinet support require full-length plywood or MDF substrate (minimum 19mm). Overhangs up to 300mm unsupported on 30mm slabs.
Use color-matched epoxy adhesive designed for engineered stone. Seams should be 1–2mm wide, filled with matching epoxy, and polished flush. Seam placement should minimize visual impact.
Maintain 3–5mm expansion gap at all walls and vertical surfaces. For commercial installations with floor heating or high temperature variation (>30°C range), consult our technical team.
All documents available in PDF. Certification documents for specific projects may be requested through the form below.
Complete material properties, test methods, and application guidelines
NSF/ANSI 51, GREENGUARD Gold, and ISO 9001:2015 certificates
Ready-to-use specification in MasterFormat Section 12 36 40
Professional installation guidelines for fabricators and contractors
Maintenance instructions and full 15-year warranty terms
All 130+ colors with production codes, thicknesses, and finishes