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SEMITI A101 vs Chemours Ti-Pure R-104

SEMITI A101 is anatase paper-grade; Ti-Pure R-104 is rutile paper-grade. Different crystal forms — choose by paper application.

For specialty paper applications, the crystal form choice matters. Anatase (SEMITI A101) is softer, less abrasive on calender rolls, and 25–30% cheaper. Rutile (Ti-Pure R-104) has higher refractive index for ultimate opacity at low loading. Choose by paper grade.

Side-by-side specification

Typical published specs for the two grades. Customer-specific CoA on inquiry.

PropertySEMITI A101Chemours Ti-Pure R-104
CrystalAnataseRutile
Refractive index2.502.75
Color (b*)≤1.3≤1.4
Crystal hardness (Mohs)5.5–6.06.0–6.5
Optimal loading6–10%30–35%
CostLowerHigher

Bold amber indicates the column with the stronger value on that line.

When to choose which

Choose
SEMITI A101
  • →Moderate opacity paper (6–12% loading typical)
  • →Cost-sensitive specialty paper
  • →Equipment-life-conscious mills (anatase has less calender wear)
Choose
Chemours Ti-Pure R-104
  • →High-opacity decor paper at 30%+ loading
  • →Premium HPL overlay paper requiring ultimate opacity

Drop-in substitution

Not direct substitutes — different applications. For 30%+ loading decor paper, use SEMITI PAPER-D (our rutile equivalent of R-104). For 6–12% loading paper, SEMITI A101 (anatase) is the choice.

Pricing context

Anatase A101 lands at half the cost per kg of rutile R-104; rutile delivers more opacity per kg. Compare cost-per-unit-opacity for specific paper application.

Bottom line

Application-driven choice. SEMITI A101 for moderate-loading specialty paper. SEMITI PAPER-D (rutile) for decor at 30%+ loading.

Full SEMITI A101 details

anatase · sulfate
SEMITI A101
Paper Laminate Anatase

Anatase optimized for decor and laminate paper — finer particle size, high opacity at low loading.

Full TDS, specifications, dosage →

Common questions

Can SEMITI A101 anatase substitute Ti-Pure R-104 rutile in my paper application?+
Not directly — these are different crystal forms for different paper applications. SEMITI A101 (anatase) is for moderate-loading specialty paper at 6–12% TiO2, where softer crystal means less calender roll wear. Ti-Pure R-104 (rutile) is for high-loading decor paper at 30–35% TiO2 where higher refractive index (2.75 vs 2.50) delivers maximum opacity per kg.
Which is cheaper — anatase SEMITI A101 or rutile Ti-Pure R-104?+
SEMITI A101 anatase lands at roughly half the cost per kg of rutile R-104. However, rutile delivers more opacity per kg due to higher refractive index. For high-loading decor paper (30%+), compare cost-per-unit-opacity, not just cost per kg — rutile often wins on a total-formulation-cost basis at high loading.
When should I use SEMITI A101 vs SEMITI PAPER-D for paper applications?+
Use SEMITI A101 (anatase) for specialty paper at 6–12% loading where calender roll longevity and cost per kg matter. Use SEMITI PAPER-D (rutile) for decor and laminate paper at 30–40% loading where maximum opacity and retention rate are critical. Don't use anatase at 30%+ loading — the refractive index disadvantage becomes a real performance gap.

Request SEMITI A101 sample for Chemours Ti-Pure R-104 substitution trial

Free 25 kg sample for technical evaluation. We typically respond within 24 hours UTC+8. FOB / CIF / DDP terms available to most ports worldwide.

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