Rutile TiO2 for Coatings: What’s Working Now (and What Isn’t)

Let’s talk about Titanium Dioxide—specifically a rutile-grade workhorse for paints and coatings, CAS 13463-67-7. The product I’ve seen coming out of Jindi Industrial Park, Dacheng County, Langfang (Hebei) is honestly punching above its weight in opacity and weathering, and that’s not just brochure-speak. In 2025, buyers are juggling price cycles, VOC rules, and “do more with less” targets. This grade helps, especially when you’re squeezing hiding power from leaner formulations.

Why this rutile grade is trending

Rutile-phase Titanium Dioxide brings the high refractive index (~2.7) that coatings people love for brightness and film opacity. Many customers say they’re getting cleaner blues and neutral whites (less yellow drift) after switching. In fact, chloride-route supply has been tight; a well-finished sulfate-route rutile with robust surface treatment is a practical, budget-steady alternative.

Typical specifications (real-world use may vary)

Process flow, testing, and service life

Feedstocks: ilmenite/rutile. Two routes are used worldwide; this supplier runs sulfate with tight control over hydrolysis, calcination, micronizing, then post-treatment (alumina/silica) for dispersion and weatherability. QC pulls per batch: whiteness (ISO 7724), hiding power (ISO 6504-3), oil absorption (ISO 787-5), residue (ISO 787-7), and dispersion grind checks (Hegman). In exterior acrylics, expected film life is around 5–12 years depending on binder, PVC, and UV exposure.

Where it’s used (and why it works)

• Architectural and industrial coatings: higher tinting strength reduces TiO2 let-down 3–8% in some formulas.
• Inks and corrugated overprints: clean masstone and fast wetting.
• Plastics (PP, PVC, PE): UV shielding and low volatility; food-contact grades available per region.
• Papermaking and rubber, fibers, ceramics: opacity and brightness without heavy density penalties.

Certifications and compliance: ISO 9001/14001 at the site; REACH registration and CI 77891 labeling; food-contact depends on grade variant and market (always check local approvals).

Customization options

You can request hydrophobic vs. hydrophilic finish, blue-tone vs. neutral undertone, tighter sieve control for high-gloss automotive, or boosted alumina for scrub resistance. Packaging: 25 kg bags or 500/1000 kg FIBCs.

Quick case notes (shop-floor reality)

• Exterior acrylic, APAC: tinting strength +5–7% vs. incumbent; TiO2 reduced 6% while keeping ΔE ≤ 0.5 after 1,000 h QUV.
• Flexible PVC film: L improved from 92.1 to 95.0; yellowness index dropped ≈ 0.8 points (ASTM E313).
• Polyester powder coat: 60° gloss +3–5 GU; haze unchanged, indicating controlled PSD and post-treatment.

Vendor snapshot: how it stacks up

Prices are indicative; check your lane and Incoterms. For many mid–high PVC coatings, this Titanium Dioxide from Hebei lands in the sweet spot of cost vs. performance.

Compliance and safety notes

Titanium Dioxide is CI 77891. Follow local regulations on respirable dust; EU classifies certain inhalable forms with specific hazard statements. For food contact or cosmetics, verify grade approvals (FDA, EU) before use.

Testing playlist you can replicate

• Hiding power: ISO 6504-3, contrast ratio at fixed PVC and film build.
• Tinting strength vs. control: ASTM D3265 or internal drawdown method.
• Weathering: ASTM G154 QUV, ΔE and chalking index at intervals.

Origin: Jindi Industrial Park, Dacheng County, Langfang City, Hebei Province.

1. ISO 591-1: TiO2 pigments—Specifications and classification.
2. ASTM D476: Standard Classification for Titanium Dioxide Pigments.
3. ISO 6504-3: Paints and varnishes—Determination of hiding power—Part 3.
4. ECHA: Titanium dioxide (EC No. 236-675-5) classification and labelling.
5. FDA 21 CFR 73.575 (TiO2 for food-contact applications), where applicable.