Royalstone Design Inc

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After the correct preparation of the substrate, the choice of the stone is extremely important. Not all stones can be installed where the climate undergoes sudden changes in temperature and where temperatures reach +30 to -30 degrees Celsius:
- Petrological examination.
- Dimensions and shape.
- Compressive strength.
- Resistance to deformation (bending).
- Coefficient of thermal expansion.
- Elasticity.
- Impact test.
- Knoop micro-hardness.
- Absorption coefficient .
- Freeze - thaw characteristics.
- Resistance to abrasion.
The Italian Porphyry of Trentino has all the characteristics certified to be used in very extreme environments.