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Fumed Silica Grease Formulation
Fumed Silica Grease: General Overview, Composition and Formulation
Fumed silica grease is a non-soap grease in which fine silica particles form a network that thickens the base fluid. Mineral oil, silicone fluid or other compatible synthetic fluids can be used for specialty thermal, electrical, sealing and chemical applications.
Silica surface treatment, loading, dispersion energy, moisture and base-fluid compatibility control consistency, transparency and oil separation.
General Composition of Fumed Silica Grease
- COMPONENT | PURPOSE
Base fluid
Mineral oil, silicone fluid or another compatible synthetic fluid providing lubrication.
Fumed silica
Forms the non-soap thickener network.
Surface-treated silica
May improve hydrophobicity, compatibility or rheology.
Structure modifier
Controls thickening efficiency, texture and stability.
Antioxidant
Used when the selected base fluid requires oxidation protection.
Corrosion inhibitor or specialty additive
Added for the target metal, electrical or sealing application.
Final loading depends on silica grade, surface area, base fluid and required consistency.
Production Process and Lubechem Technical Support
- TYPICAL MANUFACTURING SEQUENCE
1. Select the base fluid and compatible silica grade.
2. Charge the fluid into a suitable mixing vessel.
3. Add silica gradually using dust-control procedures.
4. Wet and disperse the powder under high shear.
5. Control temperature and mixing energy.
6. Add structure modifiers and compatible additives.
7. Apply vacuum to remove trapped air.
8. Test consistency, separation and specialty properties.
LUBECHEM SUPPORT
• Mineral-oil and silicone-fluid formulations
• Silica-grade and dispersion optimisation
• Transparent or translucent appearance development
• Formula, SOP and batch documentation
• Mixer, vacuum and dust-control guidance
• Laboratory-to-commercial scale-up
• Bleeding and dispersion troubleshooting
Typical Specifications, Testing and Applications
- TYPICAL DEVELOPMENT TARGETS
Consistency: semi-fluid through stiff grades
Worked penetration: ASTM D217 where applicable
Dropping point: often not meaningful for non-soap silica systems
Oil separation: ASTM D1742 or an elevated-temperature method
Evaporation loss: application-specific test
Dielectric properties: tested when an electrical claim is required
Water resistance and corrosion: verified for the chosen base fluid
Appearance: smooth, homogeneous, translucent or opaque
COMMON APPLICATIONS
• Electrical connectors and insulating components
• Valves and seals
• Laboratory and specialty equipment
• High-temperature mechanisms
• Damping and specialty industrial systems
Final specifications depend strongly on the base fluid and silica grade.
Fumed Silica Grease: Frequently Asked Questions
- Is silica grease the same as silicone grease?
No. Silica is the thickener; silicone may be the base fluid.
Does silica grease have a dropping point?
Conventional dropping-point testing may not meaningfully describe a non-soap system.
Can transparent grease be developed?
Yes, depending on the base fluid, silica type, loading and dispersion.
Which equipment is important?
High-shear mixing, dust control and vacuum deaeration are commonly required.
Can Lubechem scale it to production?
Yes, with adjustment for mixing energy, charging method and deaeration.
Get in Touch with Us
If you found this information useful and would like to discuss further, please contact us. We are committed to providing high-quality solutions tailored to your specific needs.
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