Evonik AEROSIL R812 is a hydrophobic fumed silica imported from Germany, post-treated with organosilane (HMDS) from A300. It is designed for rheology control and performance upgrading of complex systems, with high transparency, strong anti-corrosion and excellent processability, suitable for high-end formulations in multiple industries.
Professional hydrophobic modification - Treated with HMDS organosilane, excellent hydrophobicity, suitable for waterborne, solventborne and other systems, improving water resistance stability
Precise rheology control - Efficiently controls flow in complex liquid systems such as two-component epoxy and 2K PU, strongly anti-sagging and anti-settling, ensuring uniform construction
High transparency for high-end applications - Outstanding transparency, especially suitable for high-end coatings such as automotive OEM paint and clear coat, without affecting product optical appearance
Anti-corrosion and stabilization enhancement - As an anti-settling agent, it improves pigment dispersion stability and enhances coating anti-corrosion performance, extending the service life of end products
Multifunctional adaptation - It has both powder flow aid and silicone rubber reinforcement effects, easy to add, good compatibility, and suitable for multi-scenario processing needs
Coating systems - Automotive OEM paint, industrial paint, marine paint, flow control and anti-settling, enhance anti-corrosion, improve coating texture and durability
Adhesives and sealants - Control thixotropy, prevent sagging, enhance bonding strength and water resistance, adapt to multi-scenario sealing needs
Silicone rubber products - Improve mechanical and optical properties, optimize product strength and light transmittance, suitable for high-end silicone rubber formulations
Powder coatings - Used as a flow aid, improve powder fluidity, anti-caking, enhance spraying uniformity and powder transfer efficiency
Radiation curing systems - Suitable for UV and other radiation curing scenarios, flow control and anti-sagging, ensuring stable appearance and performance of cured products
| Brand | Evonik |
| Product Series | AEROSIL Hydrophobic Fumed Silica |
| Product Type | Hydrophobic Fumed Silica |
| Surface Treatment Agent | HMDS (Hexamethyldisilazane, Organosilane) |
| Raw Material Base | A300 Fumed Silica |
| BET Surface Area | 230-290 m²/g |
| Carbon Content | 2.0-3.0 wt% |
| Loss on Drying | <0.5 wt% |
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