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What is MDPE vs HDPE: Key Differences Explained about?

1. Prior to international standards, polyethylene (PE) pipe materials were designated by density as low-density PE (LDPE), medium-density PE (MDPE), and high-density PE (HDPE). 2. MDPE was developed in the 1970s for gas distribution pipes and required not only strength but also toughness standards to resist slow crack growth. 3. In the 1990s, a higher strength, higher toughness PE was introduced, designated as PE 100, to avoid confusion with traditional HDPE given their similar densities.

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