Black Granite_BG07
| Black Granite – Technical Specifications | |
|---|---|
| Stone Name | Black Granite – Flamed |
| Stone Type | Natural Granite (Igneous Stone) |
| Color | Deep Absolute Black with Fine Dark Grey Crystals and Light Reflective Specks |
| Pattern | Irregular Flamed Pattern with Natural Cleft Faces, Rustic Mosaic Look |
| Surface Finish / Technology | Natural Split + Flamed + Tumbled; Edges Hand-Cut, Anti-Slip Surface |
| Shape | Cube / Cubic Stone, Natural Split Top, Sawn / Calibrated Bottom for Easy Installation |
| Cube Size | 10 cm x 10 cm (3.94″ x 3.94″ – Nominal 4″ x 4″) |
| Thickness | 2 to 5 cm (0.79″ to 1.97″ – Nominal 3/4″ to 2″) |
| Available Forms | Loose Cubes, Mesh-Mounted Crazy Paving, Bulk Bags for Landscape Projects |
| Applications | Patios, Garden Paths, Walkways, Pool Surrounds, Outdoor Steps, Courtyards, Retaining Walls, Fire Pit Areas, Commercial Hardscape, Light-Duty Driveways (Use 4-5 cm Thickness Only) |
| Indoor Use | Limited, Accent Walls and Rustic Flooring Only Due to Irregular Surface |
| Outdoor Use | Yes, Highly Suitable for Exterior Landscape, Freeze-Thaw Climates |
| Design Style | Rustic Modern, Contemporary Landscape, Mediterranean, Farmhouse, Commercial Hardscape |
| Water Absorption (ASTM C97) | 0.06% – 0.18% by Weight, Low Absorption, Suitable for Freeze-Thaw Areas |
| Density (ASTM C97) | 2,850 – 3,030 kg/m³ (177 – 189 lb/ft³) |
| Compressive Strength (ASTM C170) | 147 – 280 MPa (21,400 – 34,000 Psi), Dry and Wet Conditions |
| Flexural Strength (ASTM C880) | 11.5 – 20.7 MPa (1,670 – 3,000 Psi) |
| Modulus of Rupture (ASTM C99) | 13.7 – 21.2 MPa (1,980 – 3,070 Psi) |
| Abrasion Resistance (ASTM C1353 / EN 14157) | High Resistance to Foot Traffic, Suitable for High-Traffic Landscape |
| Freeze-Thaw Resistance | Resistant, Tested per EN 12371 / ASTM Standards. Dense Granite with Absorption Below 0.5% is Considered Freeze-Thaw Durable for Northern US and Canada |
| Slip Resistance | Flamed + Natural Cleft Finish, DCOF ≥ 0.60, ADA Compliant for Wet Exterior Areas When Properly Installed |
| De-Icing Salt Resistance | Resistant to Weathering but Direct Use of Calcium Chloride and Magnesium Chloride is Not Recommended. Use Sand for Traction and Minimal Rock Salt Only |
| Sealing Requirement | Penetrating Silane-Siloxane Sealer Recommended Before First Winter. Reseal Every 2-3 Years for Patios, Every 1-2 Years Around Pools. Water-Drop Test Each Fall |
| Installation – USA / Canada Method | Sand-Set or Mortar-Set on 4″-6″ Compacted Base for Pedestrian, 1″ Bedding Sand, 1/8″ per Foot Slope Away from Structures, Polymeric Sand Joints, Edge Restraint Required, Do Not Install Below 40°F (4°C) Without Frost Protection |
| Cleaning & Maintenance | Clean regularly with water, soft brush or mop and pH-neutral stone cleaner. Pressure wash on low setting (max 1500 psi, keep distance). Avoid acidic, vinegar, bleach, abrasive or harsh chemical cleaners. Remove leaves and organic debris to prevent moisture stains. Inspect joints and reseal in spring. |
| Heat & UV Performance | Color Stable Under UV. Black Surface Absorbs Heat in Full Sun – Not Recommended for Barefoot Areas in Hot States (AZ, TX, FL) Without Shading |
| Packaging | Bulk Bags or Wooden Pallets, 800-1200 kg per Pallet, Coverage Marked in Sq.Ft. and m² |
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