By 1915, it was discovered that if black coal powder is mixed with cao du, the tires will resist wear and tear, helping to increase the life of the tires by 4-5 times.
After that, people also created other colors for tires such as orange, red, yellow... These tire models quickly attracted the attention of users thanks to their eye-catching colors, however, after a period of use, these tires became dry and discolored.
The main cause of the deterioration of colored tires is caused by rubber and other synthetic substances affected by ozone, an unscented gas that exists in the atmosphere. When ozone combines with foreign mortar in the sunlight, it will cause a chemical reaction, causing damage to polymeasurement tires.
Therefore, after a while, colored tires quickly disappear due to high prices but less durability than black tires.
In terms of aesthetics, black tires also help the car look strong, modern, non-stick and suitable for all paint colors.
