Chloride-Process Rutile TiO2 R-960 — High-Durability Exterior Grade (Chemours R-960 Equivalent)
SEMITECH Chloride-Process Rutile TiO2 R-960 is a premium chloride-route rutile titanium dioxide with dense Al₂O₃ + SiO₂ + organic composite surface treatment, engineered to deliver maximum chalk resistance and gloss retention for high-durability exterior coatings, coil coatings, and automotive refinish applications. The enhanced surface treatment package provides superior UV screening and photoactivity suppression compared to standard R-902 grade coatings TiO₂, enabling coating systems with 10+ year exterior durability performance.
With TiO₂ content ≥93.0 Wt%, whiteness ≥98.0, and tinting strength ≥1850, R-960 sets the benchmark for opacity and appearance in premium exterior coating formulations. The d50 of 0.2–0.28 μm — slightly tighter than R-902 — optimizes light scattering efficiency at the blue end of the visible spectrum, contributing to the clean, bright appearance demanded in high-end architectural and automotive applications.
Technical Specifications
| Properties and Test Methods | Unit | Typical Value | Standardization |
|---|---|---|---|
| TiO₂ content | Wt% | ≥93.0 | GB/T 1706 |
| Rutile crystal content | % | ≥97.0 | GB/T 5211.24 |
| Whiteness | — | ≥98.0 | GB/T 5211.13 |
| Tinting strength | — | ≥1850 | GB/T 1709 |
| Oil absorption | g/100g | 14–19 | GB/T 5211.15 |
| pH (10% slurry) | — | 7.0–9.5 | — |
| Sieve residue (45 μm) | % | ≤0.05 | — |
| Surface treatment | — | Dense Al₂O₃ + SiO₂ + organic | — |
| Median particle size d50 | μm | 0.2–0.28 | — |
| Chalking resistance | Grade | ≥1 (2000h QUV) | ASTM D4214 |
Application Suggestions
Long-Life Exterior Architectural Coatings (10+ Year Chalk Resistance)
R-960 is the TiO₂ of choice for premium exterior architectural coatings formulated to 10+ year warranty claims, where chalk resistance (ASTM D4214 Grade ≥1 after 2000h QUV) is a core product differentiator. The dense surface treatment package suppresses TiO₂ photocatalytic activity — the primary mechanism behind chalking — while maintaining the high tinting strength (≥1850) expected in premium architectural products. Equivalent to Chemours R-960 in all key durability metrics.
Automotive OEM and Refinish Coatings
In automotive topcoat and clearcoat systems, R-960's ultra-tight d50 (0.2–0.28 μm) and high whiteness (≥98.0) deliver the optical cleanliness and appearance depth demanded by automotive OEM standards. The organic component of the composite surface treatment ensures compatibility with the high-solids and waterborne resin systems used in modern automotive coating lines.
Coil Coatings for Roofing and Cladding
Pre-painted metal coil coatings for roofing, wall cladding, and building facades face intense UV, moisture, and temperature cycling. R-960's chalking resistance and gloss retention after QUV aging align with the 10–25 year performance warranties typical for premium coil coating products (PVDF, SMP, HDPE systems).
Marine and Offshore Coatings
Marine topcoats and superstructure coatings require both high opacity and maximum UV durability in aggressive salt-spray/UV environments. R-960's superior photoactivity suppression and gloss retention make it the preferred grade for premium marine topcoat and deck enamel formulations.
Technical Support & FAQ: Chloride-Process Rutile TiO2 R-960
+Q1: What makes R-960 superior to standard R-902 for exterior durability?
The key differentiator is the dense composite Al₂O₃ + SiO₂ + organic surface treatment, which provides a thicker, more complete barrier around each TiO₂ particle compared to the standard Al₂O₃ + SiO₂ treatment on R-902. This suppresses the photocatalytic surface reactions that cause chalking and gloss loss in exterior exposure. The result is ASTM D4214 chalking resistance Grade ≥1 after 2000h QUV accelerated weathering.
+Q2: How does R-960 compare to Chemours Ti-Pure R-960?
SEMITECH R-960 matches Chemours R-960 on all key performance parameters: TiO₂ ≥93%, whiteness ≥98.0, tinting strength ≥1850, oil absorption 14–19 g/100g, d50 0.2–0.28 μm, and 2000h QUV chalking resistance Grade ≥1. Pricing is typically 20–25% below Chemours list price, with full CoA documentation for customer qualification.
+Q3: What factors affect pricing?
R-960 carries a modest premium over R-902 due to the more complex surface treatment process. Volume remains the primary pricing lever — FCL pricing (approximately 20 MT) versus LCL. Contact info@semitechnm.com for a current FOB Shanghai quotation.
+Q4: What are lead times and payment terms?
Standard lead time is 7–14 days from order confirmation. Payment terms: T/T, L/C, D/P. Free samples of 200g–1kg are available for coating formulation and QUV qualification testing on request.
Packing & Storage Information
20′ FCL Container Approximately 20 MT in 25 kg multi-wall kraft paper bags (800 bags), palletized. Net weight 25.0 kg per bag.
40′ HQ Container Approximately 22–24 MT in 25 kg bags or 500 kg jumbo bags. Jumbo bag format preferred by high-volume coating manufacturers.
Storage Conditions Store in a cool, dry warehouse away from moisture. TiO₂ is chemically inert and non-hazardous. Avoid high-humidity storage to prevent bag caking. Shelf life: unlimited in correctly stored sealed packaging.