Pourquoi PVC Eau Tuyaux Changement Couleur

PVC tuyaux changera couleur pour diverses raisons pendant utilisation. Les consommateurs vont blâmeront la qualité de PVC tuyaux quand ils voient décoloration de PVC tuyaux. In fact, the reason for the discoloration of the PVC pipe is not only the quality of the PVC pipe. Let's take a look at the reasons for the discoloration of PVC pipes.

Qualité de PVC produits

There are usually two structural forms: anatase and rutile. Due to there different structures, performance, and aging resistance. It must be a rutile type when used as PVC pipe. Cependant, due to the production quality problems of some manufacturers or due to uneven surface coating, discoloration (grisement) is prone to occur under the condition of photocatalysis.