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SiSiB® FS9332 is a hydrophobic fumed silica after treated with HMDS (Hexamethyldisilazane). It acts as a thickening and anti-settling agent in coatings, adhesives, and sealants, enhancing flow control and mechanical strength.Its moisture resistance ensures stability in non-polar systems, making it ideal for durable, water-repellent applications in harsh environments."