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Highly dispersible fumed silica pigment for consistent color development and rheology control.
Surface-treated with dimethyldichlorosilane to enhance hydrophobicity and compatibility in organic media.
Delivers excellent thixotropic behavior without compromising transparency in clear coatings and inks.
Low abrasivity ensures minimal wear on processing equipment and extended service life of application tools.
Consistent batch-to-batch performance validated through Solvay’s stringent quality control protocols.
Automotive OEM and refinish coatings requiring controlled flow and sag resistance.
Industrial maintenance paints for corrosion protection in demanding environments.
UV-curable inks and varnishes where low viscosity and high solids loading are critical.
Architectural and decorative coatings needing long-term storage stability and anti-settling performance.
Specialty adhesives and sealants requiring non-aqueous thickening and reinforcement.
| Chemical Type | Fumed silica (surface-treated) |
| Product Form | Free-flowing white powder |
| Appearance | White, odorless, fine particulate powder |
| Primary Applications | Thickener, rheology modifier, and anti-settling agent in solvent-based systems |
| Key Features | Hydrophobic, high surface area, low density, excellent dispersion stability |
| Benefits | Improved sag resistance, enhanced storage stability, reduced formulation viscosity at high loadings |
| Recommended Dispersing Method | High-shear mixing or bead milling in compatible organic solvents |
| Storage Conditions | Store in dry, cool conditions; keep container tightly sealed to prevent moisture absorption |
Q1: What is the primary function of TIXOSIL 38 in polymer systems?
A: TIXOSIL 38 is a surface-treated synthetic silica pigment designed to provide controlled rheology, anti-settling performance, and improved dispersion stability in liquid polymer systems—particularly in silicone-based and high-viscosity organic media.
Q2: Is TIXOSIL 38 compatible with platinum-cure silicone formulations?
A: Yes, TIXOSIL 38 is specifically engineered for compatibility with both addition-cure (platinum-catalyzed) and condensation-cure silicone systems, without interfering with cure kinetics or final elastomer properties when properly dispersed.
Q3: How should TIXOSIL 38 be incorporated into a formulation?
A: It is recommended to disperse TIXOSIL 38 using high-shear mixing or rotor-stator equipment prior to adding other components. Pre-wetting with a portion of the base polymer or solvent helps achieve uniform distribution and avoids agglomeration.
Q4: Does TIXOSIL 38 require drying or activation before use?
A: No—TIXOSIL 38 is supplied as a free-flowing, dry powder with optimized surface treatment for immediate use in most applications. Storage under dry conditions is advised to maintain handling performance.
Q5: Can TIXOSIL 38 be used in food-contact or medical-grade silicone compounds?
A: TIXOSIL 38 is not pre-qualified for regulated applications. Its suitability for food-contact or medical devices depends on full system validation—including extraction testing, biocompatibility assessment, and compliance with applicable regional regulatory frameworks.
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E-mail: wangxingqiang@ericwchem.com
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