W13-A-001 — White Masterbatch vs Direct Titanium Dioxide Addition
1. What decision is the buyer trying to make?
Whether to dose TiO₂ into the process as a pre-dispersed white masterbatch or as direct TiO₂ powder into the extruder / compounder.
2. Which variables actually matter?
- Dispersion quality required (film gauge, fibre denier, thin-wall part)
- Line type (single-screw vs twin-screw vs compounding line)
- Dust and hygiene constraints (food, medical, closed feeding)
- TiO₂ loading level and consistency of dosing
- Downstream defects tolerated (specks, agglomerates, streaks)
- Total delivered cost per kg of TiO₂ actually dispersed, not per kg purchased
3. Which variables are commonly misunderstood?
- Powder TiO₂ looks cheaper per kg but often costs more per kg dispersed once scrap and downtime are included.
- "We have a twin-screw, so we can add powder" is only true when dispersion is validated on the actual grade and loading.
- Masterbatch carrier compatibility is not automatic — a PE-carrier white MB in a PP line has trade-offs.
4. What additional information is required before deciding?
- Process (film, injection, blow, fibre, sheet, compounding)
- Polymer and MFI
- Target TiO₂ loading (%)
- Existing feeding equipment (gravimetric, volumetric, powder handling)
- Quality specification (opacity, L*, defect count)
- Regulatory scope (food contact, toy, medical)
5. What should be included in the RFQ?
- Application and process
- Polymer + MFI
- Target TiO₂ loading and opacity target
- Carrier preference / restriction
- Regulatory requirements
- Volume and packaging
- Existing benchmark (grade in use today)
So what should the buyer investigate next?
Whether their current dispersion, dust exposure and scrap rate justify the format they use today — and request a like-for-like trial before switching.
Bridges
- W4 — White Masterbatch cluster
- W5 — Titanium Dioxide vertical (Rutile vs Anatase, grade selection)
- W10 — Application × Masterbatch (Film, Injection)