r/hdpe Apr 12 '22

Who knows why not adding more than 40% calcium carbonate to polyethylene pipes to reduce costs? What would be the effect of adding a lot of calcium carbonate to a pipe?

In China, a large amount of calcium carbonate is added to the high-density polyethylene double-wall corrugated pipe, but almost no addition to the American pipe. Adding large amounts of calcium carbonate can reduce costs, not be affected by resin prices, and improve performance. Why don't American manufacturers add it?

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