Medium-density polyethylene (MDPE) :

MDPE density range is between 0.926–0.940 g/ can be produced by chromium/silica catalysts, Ziegler-Natta catalysts or metallocene catalysts. MDPE has good shock and drop resistance characteristics.

It also is less sensitive than HDPE, stress cracking resistance is better than HDPE.

It is normally used in gas pipes sacks, shrink film, packaging film, carrier bags and screw closures.