COMPARISON OF STONE, EPOXY & NATIONAL TILES
COMPARISON |
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Features / Flooring |
Stone 1 |
Stone 2 |
Epoxy Flooring |
National Industrial Tiles |
Main Constituents |
Limestone or Calcite |
Quartzite Sandstone |
Organic Copolymers |
Inorganic Oxides |
Flexural Strength |
20 - 25 |
25 – 30 |
25 - 35 |
> 40 |
Water Absorption |
2 - 4% |
1 - 2% |
0.2 - 0.5% |
<0.3% |
Bulk Density (gm/cu.cm) |
2.1 - 2.3 |
2.1 - 2.5 |
2.1 |
2.4 |
Slipperiness |
Polished surface is |
Less slippery |
Slippery |
Antiskid with co-efficient |
Acid-Alkali Resistance |
Not Resistant to Acids |
Not Resistant to Alkali |
Not Resistant to Acids |
Resistant to Acids & Alkali |
Shear Resistance |
Low |
Low |
Very Low |
High |
Resistance to heavy |
Low |
Low |
Very Low |
High |
Scratch Resistance |
3 - 4 |
5 – 6 |
4 - 5 |
> 7 |
Fire Resistance |
Moderate |
Good |
Inflammable |
Fire Proof |
Maintenance Cost |
High |
High |
Very High |
Low |
Service Life |
5 Years |
5 Years |
1 Year |
15 Years |
Shade Variation |
High |
High |
Very Low |
Low |
Environment Friendliness |
Requires Extensive Mining and destroys natural resources. |
Requires Extensive Mining and destroys natural resources. |
NA |
Environment friendly |
Production & |
Very Hazardous - |
Very Hazardous - |
Adherence to ISO Standards |
Adherence to ISO Standards |
Safety Standards |
No Safety Standards |
No Safety Standards |
Complies with all safety gear requirements as per health & safety standards. |
Complies with all safety gear requirements as per health & safety standards. |
Waste Disposals |
Disposal in open land without any treatment. |
Disposal in open land without any treatment. |
Effluent treatment as per Standards. |
Effluent treatment as per Standards. |
Child Labor |
Employed |
Employed |
Employed in few |
No Child Labor |
Labor Exploitation |
Yes. Day - Night Shifts with below minimum wages. |
Yes. Day - Night Shifts with below minimum wages. |
Safe & good working |
Safe & good working conditions. Adhering to Minimum Wage Act. |
Ecological Imbalance |
Extensive digging / Mining can lead to earthquakes. |
Extensive digging / Mining can lead to earthquakes. |
NA |
NA |
Sizes |
1.5 x 1.5, 2 x 1, 2 x 1.5, 2 x 2 (Commonly Used) |
2 x 1.5, 2 x 2, 2 x 2.5 (Commonly Used) |
NA |
268 x 132 x 13- 15mm |