The advantages include both improved properties and higher output from the extru­sion line. As a manufacturer you can choose improved properties or down-gauging with retained properties and hence lower material costs. The example below compares HDPE film without and with the addition of 23% FPO® masterbatch 271, which contains 75% CaCO3 based on PE-LLD.

 

  HDPE HDPE+ 23% 271
Thickness 15 μm 13 μm
Grammage 14.6 g/m2 14.0 g/m2
Dart drop resistance 105g 115 g
Elmendorf tear resistance MD 90 mN 160 mN
Tensile strength at break (min MD/CD) 42N/mm2 37N/mm2
Elongation at break (min CD/MD) 380% 370%
Blown film output 139 kg/h 172 kg/h
Raw material costs 100% 91%