Calcium carbonate (CaCO3) filler masterbatch (or filler master batch) is a concentrated mixture of calcium carbonate and other additives encapsulated during a heat (mainly extrusion) process into a carrier polymer resin which is then cooled and cut into  granules (pellets) making CaCO3 masterbatch a solid additive for plastics. Since common CaCO3 MB was originally intended for filling plastics to replace a part of expensive carrier resin it is often called filler masterbatch or filler additive.

Table of content: 

Appearance (Surface color)                              

White

Processing temperature              

140 – 280oC

Usage rate

: 5 -30 %

Pellet Size                                                         

3x3 (±0.3) mm

Carrier resin                                                          

PE, PP

Compatibility  

LLDPE, LDPE, HDPE, PP

Packing   

25 kgs per PP bag.

Storage   

Keep at dry condition