PP filler masterbatch is a highly filled calcium carbonate filler masterbatch containing fine pure CaCO3 in PP resin and special additives.

This filler masterbatch is intended to be added into polyolefin resins during extrusion, injection or blow molding to displace a portion of the resin, improve properties, cut costs.

Adding ratio is normally in the range of 20 to 40% (or even higher in some applications) depending on the particular product and processing conditions.



  • Extrusion: PP tape (raffia), woven PP bags, jumbo bags etc.
  • Injection: summer furniture, various containers, boxes, buckets, electric appliances etc.
  • PP non-woven fabric


Physical Properties:

IndexTest methodUnitTypical Value
CaCO3 content%wt75~80
CaCO3 particle sizeMalvern Mastersizer 2000µ3
MI @2.16kg/230oCASTM D1238g/10 mins10
DensityASTM D1505g/cm31.78
MoistureASTM D644%0.15 max
Shape—-granule2~3 mmФ


Packing, storage, and marking:

  • Packing: PP/PE bag that weight 25 kg per bag with labeling based on the inquiry of clients.
  • Storage: all of the fulfill bags will be stored in the dry, cool and ventilated condition and put over pallets before being load into containers.
  • Additives: Dispersion agent, Processing aid, etc.
  • Carrier resin: PP Polyethylene
  • Appearance (surface color): White