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Product Details:
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| TiO2 Content: | ≥93.0% | Rutile Content: | ≥97.0% |
|---|---|---|---|
| Oil Absorption: | 17-22 G/100 G | PH Value: | 7.0-9.0 |
| Specific Resistance: | ≥5000 Ω*cm | Loss At 105°C: | ≤0.50% |
| Highlight: | Silicon Aluminum Inorganic Coating Titanium Dioxide,Organic Treatment Sulphate Process Titanium Dioxide,Water Based Coatings Rutile Titanium Dioxide |
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SR-237 is a rutile titanium dioxide (TiO₂) white pigment with silicon- and aluminum-based inorganic surface coating and an organic treatment. The manufacturer describes good whiteness, high hiding power, durability and dispersion. The TDS identifies water-based coatings as the stated application. This report reproduces the source specifications and separately offers practical formulation and quality-control considerations; the latter are not manufacturer-guaranteed claims.
| Item | Description |
|---|---|
| Product | SR-237 |
| Pigment chemistry | Rutile titanium dioxide (TiO₂) |
| Inorganic surface treatment | Si, Al |
| Organic treatment | Yes |
| Manufacturer-stated application | Water-based coatings |
| ISO 591-1:2000(E) | R2 |
| ASTM D476-00 | Type II |
| Property | SR-237 Specification |
|---|---|
| TiO₂ content | ≥93.0% |
| Rutile content | ≥97.0% |
| Inorganic coating | Si, Al |
| Organic treatment | Yes |
| Loss at 105°C | ≤0.50% |
| Solution in water / water-soluble matter | ≤0.5% |
| Residue | ≤0.01% |
| Whiteness (WH) | ≥97.0% |
| L value | ≥98 |
| Tint reducing power | ≥180% |
| Oil absorption | 17–22 g/100 g |
| pH of aqueous suspension | 7.0–9.0 |
| Specific resistance | ≥5000 Ω·cm |
Source note: The TDS states that product indicators are subject to the test report. No lot-specific COA results or individual test methods are supplied in this image.
| Characteristic | Technical interpretation / qualification consideration |
|---|---|
| Whiteness and L value | High specified whiteness and L value support evaluation for clean white coating shades. Verify appearance in the target binder and at the required pigment loading. |
| Hiding and tint reducing power | The TDS describes high hiding power and specifies tint reducing power ≥180%; opacity and contrast ratio in the finished film require application-specific testing. |
| Dispersion | Surface treatments and the manufacturer's dispersion claim are relevant to water-based coatings. Check milling time, fineness of grind, flocculation and storage stability. |
| Durability | The TDS describes good durability, but provides no accelerated-weathering or exterior service-life data. Validate for any exterior-use claim. |
| Oil absorption | The specified 17–22 g/100 g is a useful pigment demand/consistency reference; it does not directly determine the optimum PVC/CPVC of a coating. |
| pH and conductivity | Aqueous-suspension pH 7.0–9.0 and specific resistance ≥5000 Ω·cm can inform compatibility screening and incoming QC. |
The manufacturer explicitly lists water-based coating as the application. Suitable formulation trials may include architectural emulsions and other aqueous binder systems, subject to validation. The TDS does not certify any particular resin chemistry, interior/exterior service class, regulatory use, or finished-coating performance.
| Evaluation focus | Recommended testing |
|---|---|
| Opacity / hiding | Contrast ratio at fixed dry-film thickness and pigment volume concentration |
| Color / whiteness | L*a*b* and whiteness in a controlled reference formulation |
| Dispersion | Fineness of grind, grind time and post-storage stability |
| Rheology | KU/Brookfield viscosity, flow and leveling in the complete formulation |
| Durability | Water resistance, scrub resistance and exposure testing as required by the target use |
| Compatibility | pH stability, dispersant demand and interactions with binder/additives |
| QC category | Recommended check | Basis |
|---|---|---|
| Identity / surface treatment | Supplier COA; grade confirmation | TDS identification |
| Composition | TiO₂ ≥93%; rutile ≥97% | Manufacturer limits |
| Moisture / soluble matter | 105°C loss ≤0.50%; water solubles ≤0.5% | Manufacturer limits |
| Residue | ≤0.01% | Manufacturer limit |
| Optical properties | Whiteness ≥97%; L ≥98; tint strength ≥180% | Manufacturer limits |
| Oil absorption / pH | 17–22 g/100 g; pH 7.0–9.0 | Manufacturer limits |
| Specific resistance | ≥5000 Ω·cm | Manufacturer limit |
| Formulation suitability | Opacity, viscosity, grind and storage tests | Suggested additional tests |
| Item | Manufacturer-stated information |
|---|---|
| Packaging | 25 kg full-paper bag; 500 kg or 1000 kg PP woven bag |
| ISO classification | R2 |
| ASTM classification | Type II |
| Contact email | market@doguide.net |
| Website | www.doguide.net |
| Address | No. 55 Henglihe Qiuqu, Boshan District, Zibo City, Shandong Province, China |
The supplied TDS does not provide particle-size distribution, numerical contrast ratio, weathering results, dispersion curves, recommended dispersant loading, shelf life, detailed storage conditions, safety classification or full test methods. Request a current TDS, Safety Data Sheet (SDS), and lot-specific Certificate of Analysis before commercial approval. General dry-powder handling calls for contamination and dust control, but these are not manufacturer-specific instructions in the source.
Please feel free to contact us to obtain the detailed manual.
Qingdao Botian Chemical Co., Ltd belongs to Qingdao Tida International Trade Co., Ltd, founded in 2003. After eighteen years of technological and scientific innovation and production line management, we have become the leading company of Titanium Dioxide products, PVC Paste Resin products production and international sales company.
Main products include over a dozen kinds of high-precision chemical products which are chloride process and sulphate process Titanium Dioxide, Titanium Oxychloride, Titanium Tetrachloride, High Titanium Slag, PVC Paste Resin, Caustic Soda etc. With a professional, tight, young technology R&D team, making the product has a high precision and purity of scientific evidence and quality guarantee.
Chinese claims that twelve years is a cycle. Botian & Tida in the past twelve years development science and technology. Always stick to the ideal of scientific benefit mankind, with exalted scientific attitude to the leading product innovation and research and development; Botian in the past twelve years of market development, adhere to the market demand, to work in front of our industry attitude and strict grasp market demand trend, be committed to develop diversified international market. Talent firmly believe that honesty is well-being rich, credibility of natural upsurges, become industry leaders.
In the next years, Botian & Tida will continue moving steadily and firmly. Maintenance with the domestic large state-owned enterprises and Southeast Asia, North America and European countries the business relationship. At the same time we sincerely welcome and look forward to your arrival — TIDA's new partner.
Respected science, the benefit of mankind, cooperation and innovation, sustainable win-win.
Contact Person: Louis Liu
Tel: 13675620692
Fax: 86-532-89088579
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