Rutile TiO2 You Can Actually Rely On: Field Notes on SR‑2377

If you spend time around coatings labs or masterbatch lines, you hear the same refrain: consistency beats everything. That’s why the TITANIUM DIOXIDE RUTILE SR-2377 INDUSTRY TIO2 POWDER CAS No.13463-67-7 keeps popping up in real production talk. Originating from Jindi Industrial Park, Dacheng County, Langfang City, Hebei Province, it’s a clean, bright rutile-grade TiO2 engineered for weatherable coatings, plastics, and inks—where hiding power and dispersion are the day-to-day battles.

What’s happening in the TiO2 market (and why it matters)

Two things shape demand right now: tougher VOC limits pushing waterborne systems, and buyers looking for stable blue undertone plus outdoor gloss retention. Actually, a third: supply reliability. Many customers say SR‑series rutile grades feel “comfortable” on line—less fiddling with dispersants and fewer color swings lot-to-lot. To be honest, that kind of quiet stability is underrated.

Technical snapshot (typical values)

Where TITANIUM DIOXIDE RUTILE SR-2377 INDUSTRY TIO2 POWDER CAS No.13463-67-7 tends to shine is dispersion: fast Hegman development and a calm viscosity profile. In plastics, that usually means you can shave loading by a notch and keep opacity—surprisingly often in PE film and PP masterbatch.

Process flow and QA

Materials: selected ilmenite/rutile feedstock → chloride-route oxidation of TiCl4 → micronization → Al/Zr inorganic treatment → organic post-treatment → controlled drying/milling → dust-tight packing.
Methods & tests: ISO 591 classification; pigment tests per ISO 787 and ASTM D476 (brightness, tinting strength, residue, pH, oil absorption). Batch COAs and retained samples are standard. Weathering checked against QUV/EMMAQUA baselines where applicable. Typical coating service life outdoors: ≈ 7–12 years in architectural binders (obviously binder/film-build/climate matter).

Vendor landscape (typical benchmarks)

Applications, customization, and real feedback

Use cases: architectural and industrial coatings (low‑VOC, waterborne alkyds, acrylics), powder coatings, PVC profiles and siding, PE/PP masterbatch, inks and primers. Loading: coatings 10–25% by volume; plastics 1–6% TiO2 depending on film thickness and opacity targets.

Customization: hydrophilic vs. hydrophobic surface finish; tighter sieve control; pre-dispersed slurry for waterborne lines; packaging in 25 kg bags or ≈1,000 kg big bags. Many customers say the “plug-and-run” feel reduces let-down issues—less microfoam and quicker gloss build.

Case notes (short and practical)

• Coatings: a coil‑coating line swapped in TITANIUM DIOXIDE RUTILE SR-2377 INDUSTRY TIO2 POWDER CAS No.13463-67-7 and held ΔE ≤ 0.8 after accelerated QUV cycles compared with ΔE ≈ 1.1 previously, same binder, same grind time.
• Plastics: PE film maker trimmed TiO2 loading from 4.0% to 3.5% while maintaining opacity target (contrast ratio 98%)—crediting finer dispersion and undertone.

Compliance, safety, and standards

Conforms with ISO 591 rutile classification; typical quality systems: ISO 9001/14001; REACH/ROHS statements available on request. Handle TiO2 dust responsibly; follow local occupational exposure limits. Classification guidance per EU CLP applies to respirable dust hazards.

Authoritative citations

1. ISO 591‑1:2019 Pigments—Titanium dioxide. https://www.iso.org/standard/73944.html
2. ASTM D476 Standard Classification for Dry Pigmentary Titanium Dioxide Products. https://www.astm.org/d0476-14.html
3. ISO 787 series—General methods of test for pigments and extenders. https://www.iso.org/committee/47924.html
4. EU CLP Regulation (EC) No 1272/2008—TiO2 classification updates. https://eur-lex.europa.eu
5. REACH registration guidance for TiO2 (ECHA). https://echa.europa.eu/substance-information