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: It provides structural reinforcement and controls flow during application.

: One of its most valued traits is its ability to change the viscosity of liquids. It creates a "thixotropic" effect—liquids become thinner when stirred or agitated but thicken back into a gel-like state when left still. 112945

Fumed silica is a non-crystalline (amorphous) form of silicon dioxide ( SiO2cap S i cap O sub 2 : It provides structural reinforcement and controls flow

: It acts as an anti-sagging agent, preventing paint from dripping off vertical surfaces. 112945

The number is the primary CAS registry number for fumed silica (also known as pyrogenic silica), a versatile synthetic material used extensively across modern industry. The Science of Fumed Silica