How to choose and maintain facing stones such as marble and granite?

How to choose and maintain facing stones such as marble and granite?

Marble and granite are called facing stones.

Take 60 cm×60 cm as an example:

1. The thickness of the stone slab must be uniform, not thinner than 1.5 cm, the four corners must be accurate, must be right angles, and the cutting edges must be neat, and there should be no obvious mechanical patterns or burst edges.

2. The brightness should be good, there is no pitting on the surface, and the brightness should be at least 80 degrees.

3. The surface pattern and pattern are uniform, without obvious variegation, and the color difference should be basically the same.

4. The internal structure is tight without cracks.

Maintenance and maintenance of facing stone.

1. Wipe frequently, keep the surface clean, and wax and polish regularly to make the stone surface always look new.

2. As far as possible, avoid acid, alkali and other chemicals from directly contacting the surface, causing chemical reactions and causing color differences.

3. Try to avoid direct and frequent rubbing of the shoe sole nails on the ground.