Due to the popularity of red stone in the country, as well as the international market (especially in the Middle East), red stone has always been the mainstream of the best-selling stone, especially red granite demand is very strong. But the number of natural red granite is less and less, especially the original some of the outstanding red granite / marble varieties are now off the mine, which makes the stone (granite) dyed red board market growing up. And sometimes due to the natural characteristics of stone, it will inevitably produce a lot of color changes, so sometimes because of the engineering requirements, we sometimes have to use color to adjust some of the larger color stone (granite).

Here to tell you about the granite dyed red plate production process and process:

First, the water dissolved in ferric chloride, while adding a small amount of catalyst made of dyeing solution.

The granite is then placed and completely soaked in the dyeing solution.

After soaking for some time, remove the cleaning, drying, coloring after the red granite.

(Note that the time to soak according to stone, color, water absorption, stone gap, etc. to different)

Production process should pay attention to the main points:

Color solution concentration: different concentrations of different color effects, the production should look at the actual situation may be, the general concentration of 20% is the best.

Soaking time: to have enough time, too short color is not good, but the time is too long is not high efficiency. Generally take 3-4 hours as well.

PH value of the color: PH value is too large and too small to change the color of the granite and gloss are not good, generally take 2 for the best.

Drying temperature: generally selected at 200-250 ℃ (Celsius) is appropriate.

Drying time: usually about 2 hours.