Why should calcium carbonate be added in the production of PPR water pipes?

Sometimes consumers have no way to tell the quality of PPR water pipes. Just like adding calcium carbonate to PPR water pipes, there is no difference at all from the appearance of the water pipes. However, among small-scale manufacturers, doping calcium carbonate in the production of PPR water pipes is a common phenomenon.

If the light-shielding properties of the PPR water pipe are not good, light can shine into the water through the pipe wall, which will promote the reproduction of algae plants in the water. Algae grow for a long time and will accumulate on the pipe wall. Over time, scale will form, which will affect the water quality to a certain extent.

Since GB/T 21300 is not a mandatory standard, but a recommended standard, there is some room for manufacturers' attitude.

The other is to look for good PPR raw materials that can meet the shading requirements. However, in order to reduce production costs, many manufacturers have found a low-cost alternative solution, which is to add calcium carbonate to water pipes. Calcium carbonate can effectively improve the light-shielding performance of water pipes.