PVC PIPE Precipitate Calcium Carbonate Powder has many advantages. The wide range of particle sizes permits the modification of a broad range of PVC resins – since each grade can be used as a partial or total replacement for expensive impact modifiers. Also, the ability to produce different grades from the same calcining process assures consistent performance for consistent quality. A good filler will work like a “magic wand”. It would sharpen all the good features of PS and contribute to the enhancement of PS properties, especially stiffness and rigidity at normal temperatures without introducing defects.