Iota Silicone Oil (Anhui) Co., Ltd
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Hydrophobic fumed silica is a modified form of fumed silica (amorphous silicon dioxide) treated with silanes or siloxanes to reduce its surface polarity. This treatment enhances compatibility with nonpolar systems like polymers, oils, and coatings. Key properties include low water absorption, excellent flow control in adhesives, and improved dispersion in hydrophobic media. Applications span silicone rubber reinforcement, powder coatings, and cosmetics (e.g., anti-caking agents). Its resistance to moisture ensures long-term stability in outdoor formulations.
