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Item | Standard Engineered Quartz Stone | JW Quartz Stone |
Water Absorption | <0.2% | 0.004% |
Moh’s Hardness | ≥Class 5 | Class 7 |
Abrasion Resistance | ≤ 300mm³ | 156mm³ |
Stain Resistance | Sum of Stain Index: ≤ 64, Max depth of Stain: ≤ 0.12mm | Sum of Stain Index: 38, Max depth of Stain: 0.06mm |
Chemical Resistance | No obvious damage after test,slight damage should be erased by 600 mesh sandpaper, damage will not affect the performance of products | No obvious damage |
Radionuclide(A class) | Internal Exposure Index IRa≤ 1.0 Internal Exposure Index Ir≤ 1.3 | 0.01 0.01 |
Density | 2.44 g/cm³ |







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