Fumed silica A-200 (a hydrophilic fumed silica with a specific surface area of 200 m²/g ± 25 m²/g) is widely valued in the lubricants industry for its exceptional ability to modify rheology, improve stability, and enhance performance. Its nanoscale particle size (typically 7-40 nm) and high surface area (200 m²/g) make it a versatile additive for addressing various challenges in lubricant and grease formulations.

4. Synergistic Use with PTFE
Application: Stabilizes PTFE suspensions in lubricants.
Example: In food-grade greases (NSF H1), A-200 (3-5%) suspends PTFE particles in white oil.
Benefits:
*Prevents PTFE settling.
*Improves lubricity and load-carrying capacity.
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