The natural stone used in decoration is mainly granite and marble. When choosing, generally pay attention to the following aspects.
1, observe the appearance
When selecting a stone, it should be observed whether there are decorative defects such as cracks, missing corners, color line spots, depressions, blisters, warpage, stains, etc. In order to ensure a good decorative effect, the consumer can place the stone in the place where the natural light is irradiated before the purchase, and observe whether the color and pattern of the stone product are consistent at a distance of about 1.5 meters.
2, observe the surface
When selecting stone, the layer structure of the stone surface should also be observed. Generally speaking, the granite with good quality has a uniform grain structure and has a fine texture; while the grain of the poor quality grain is uneven. The good quality marble has a fine appearance, uniform gloss, uniform color tone and no repair marks. The poor quality marble surface has repair marks, poor gloss, and the pattern color is very inconsistent.
In general, the choice of granite surface is highly correlated with the use of granite. If it is used for the decoration of countertops and interior wall floors, it is suitable to choose polished mirrored granite plates. These materials have high surface gloss, good compactness and high pollution resistance; if used in public places such as stairs and outdoor floors. It is suitable for the selection of granite slabs of lychee and fired noodles. The surface of these materials has good anti-slip performance and visually returns to the original.
Due to the texture and composition, marble can only be used indoors, suitable for indoor walls, floors, window sills, TV cabinets and other parts.
3, ink detection
When purchasing stone, you can drop a drop of ink on the back of the stone. If the ink is scattered and infiltrated quickly, it means that the stone has a large porosity, the material is loose, the water absorption rate is large, and the compressive strength is low; It shows that the stone structure is dense, the porosity is small, and the compressive strength is high.
4, view the test report
When selecting stone, attention should be paid to the radionuclide of stone. Some stone radionuclides are high and are not suitable for home interior decoration. The radionuclides of different origins and different mines are different. Therefore, when purchasing, you should check the radionuclide inspection report of the product. When paying attention, pay attention to the origin of the stone, the type of radionuclide, and the limitation of the scope of use.
5, observe the color
When choosing granite for home interior decoration, you should observe the color of granite, red, brown, green or red with large spots. The radionuclide of this type of granite may be higher than other colors. Granite is not suitable for indoor use. If you need to use this type of granite, it is recommended to check the radionuclide test report for such products and, if necessary, send the product to a third-party testing agency for testing.
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