High-Conversion FAQ – Talc Powder

1. What mesh size of talc powder should I choose for my application?

The ideal talc powder mesh size depends on your industry and performance requirements.

  • Plastics & masterbatch: 600–1250 mesh (good stiffness, dispersion, and cost balance)

  • Coatings & paints: 1000–2000 mesh (smooth surface, better barrier effect)

  • Rubber: 800–1500 mesh (processing aid and surface quality improvement)

  • High-end or functional applications: 2000–3000 mesh or micron-based grades

If you are unsure, simply tell us your application and processing method—we can recommend the most suitable grade.

2. Is talc powder mesh size the same as particle size in microns?

No. Mesh size is a traditional, approximate classification, while micron-based particle size is more precise.

For coarse talc (≤800 mesh), mesh size works well.
For fine and ultra-fine talc (≥1250 mesh), D50 and D97 micron values are more reliable.

Example:
A “3000 mesh talc powder” may be specified as D50 ≈ 3–4 μm, D97 ≤ 10 μm.

For export markets and performance-critical applications, we recommend selecting talc powder based on micron data rather than mesh alone.

3. What are the benefits of using fine or ultra-fine talc powder?

Fine talc powder offers more than just smaller particle size. Its plate-like structure delivers key functional advantages:

  • Improved stiffness and dimensional stability in plastics

  • Better barrier properties in coatings

  • Enhanced surface smoothness and scratch resistance

  • Improved processing efficiency in rubber compounds

However, finer talc is not always better. The optimal grade depends on dispersion requirements, formulation cost, and processing conditions.

4. Can talc powder be surface-treated or modified?

Yes. Surface-treated talc powder is widely used in plastics, coatings, and rubber.

Modified talc offers:

  • Better compatibility with polymer systems

  • Improved dispersion and reduced agglomeration

  • Lower moisture absorption

  • Enhanced mechanical performance

If you are working with PP, PE, PVC, or engineering plastics, surface-treated talc is strongly recommended.

5. What quality parameters should I check besides mesh size?

Mesh size alone is not enough for stable performance. Key parameters include:

  • Whiteness and color consistency

  • Particle size distribution (D50 / D97)

  • Oil absorption

  • Moisture content

  • Impurities (Fe₂O₃, CaCO₃ content)

Reliable suppliers always provide technical data sheets and batch consistency to ensure repeatable results.

6. How do I get the right talc powder grade and a quotation?

The fastest way is to share:

  • Application (plastics, coatings, rubber, etc.)

  • Target mesh size or micron requirement

  • Annual usage or trial quantity

Our technical team can recommend the right talc powder grade, provide samples, and offer a competitive quotation tailored to your needs.

👉 Contact us now for technical support and pricing.