1. Is CaCO₃ masterbatch suitable for injection molding?
Yes. It is widely used in PP and PE injection molding to improve stiffness, reduce shrinkage, and lower production costs.

2. What benefits does CaCO₃ masterbatch offer for injection-molded products?

• Better dimensional stability — less warping and deformation

• Higher rigidity — ideal for storage boxes, furniture, and appliance parts

• Improved molding efficiency — shorter cooling and cycle time

• Enhanced surface finish — smoother and more printable surfaces

• Significant cost savings — replacing part of the polymer

3. What products commonly use it?

• Household items (chairs, stools, baskets, containers)

• Packaging products

• Toys and daily-use goods

• Appliance components

• Automotive interior parts

• Caps and closures

4. Will CaCO₃ masterbatch affect product strength?
High-quality masterbatch does not reduce strength.
Properly dispersed CaCO₃ improves rigidity while maintaining toughness.
However, low-grade fillers may cause brittleness or cracking.

5. How much filler should be added?
Recommended general ranges:

• 10–30% for household goods

• 20–50% for thick molded items

• 5–15% for parts requiring toughness

Testing is important to determine the optimal level.

6. What factors should manufacturers consider?

• Match the carrier resin (PP or PE)

• Choose fine, high-whiteness CaCO₃

• Ensure good dispersion and low moisture

• Check injection cycle time and mold design

• Avoid excessive addition that may lower impact strength

7. Is CaCO₃ masterbatch environmentally friendly?
Yes. Using mineral fillers reduces total plastic consumption, lowers production costs, and contributes to more sustainable manufacturing.