Hydrophobic Fumed Silica

Hydrophobic Fumed Silica is a structure modified hydrophobic silica treated with either HMDS (Hexamethyldisilazane), DDS (Dimethyldichlorosilane), or silicone oil. Depending on the selection chosen, the properties for this silica can provide a low thickening effect, excellent reinforcing in silicone rubber, free-flow aid for powders, good anti-sagging properties, stability in epoxy resin, good thickening, high water resistance in powders, and more. Hydrophobic fumed silica from Hifull are applicable with silicone rubber, toner, anti-foamer, vinyl ester resins, toners, coatings and printing, and greases.
Hydrophobic Fumed Silica

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  • HB-132 is a structure-modified hydrophobic fumed silica which is created by subjecting hydrophilic grades with BET of 200 m2/g to chemical post-treatment with HMDS (Hexamethyldisilazane). Featuring low thickening, excellent processability, and good free-flow characteristics, it is well-suited for transparent powder systems. This product is designed for use in adhesives & sealants, defoamers, and printing toners.
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  • HB-135 is a structure-modified hydrophobic fumed silica which is created by subjecting hydrophilic grades with BET of 380 m2/g to chemical post-treatment with HMDS (Hexamethyldisilazane). Featuring low thickening, excellent processability, and good free-flow characteristics, it is well-suited for transparent powder systems. This product is designed for use in adhesives & sealants, defoamers, and printing toners.
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  • HB-139 is a structure-modified hydrophobic fumed silica which is created by subjecting hydrophilic grades with BET of 200 m2/g to chemical post-treatment with PMDS (Polydimethylsiloxane). Featuring good thickening effects, high water resistance, and good free-flow characteristics, it is well-suited for transparent powder systems. This product is designed for use in coatings, inks, and adhesives & sealants.
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  • HB-151 is a structure-modified hydrophobic fumed silica which is created by subjecting hydrophilic grades with BET of 150 m2/g to chemical post-treatment with DDS (Dimethyldichlorosilane). This product is designed for use in coatings, inks, and adhesives & sealants.
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  • HB-152 is a structure-modified hydrophobic fumed silica which is created by subjecting hydrophilic grades with BET of 200 m2/g to chemical post-treatment with DDS (Dimethyldichlorosilane). This product is designed for use in coatings, printing inks, and adhesives & sealants.
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  • HB-612 is a hydrophobic fumed silica, in the form of a high purity white colloidal powder, which is created by subjecting hydrophilic grades with BET of 150 m2/g to chemical post-treatment with HMDS (Hexamethyldisilazane). It features good rheological control, anti-sagging, free-flow, and anti-caking characteristics. This product is designed for use in adhesives & sealants and paints & coatings.
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  • HB-615 is a hydrophobic fumed silica, in the form of a high purity white colloidal powder, which is created by subjecting hydrophilic grades with BET of 150 m2/g to chemical post-treatment with HMDS (Hexamethyldisilazane). It features high hydrophobicity, thixotropic stability, and free-flow & anti-caking properties. This product is designed for use in coatings, inks, negative toners, and adhesives & sealants.
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  • HB-620 is a hydrophobic fumed silica, in the form of a high purity white colloidal powder, which is created by subjecting hydrophilic grades with BET of 200 m2/g to chemical post-treatment with HMDS (Hexamethyldisilazane). It features high hydrophobicity, thixotropic stability, and free-flow & anti-caking properties. This product is designed for use in paints & coatings, inks, and adhesives & sealants.
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  • HB-630 is a hydrophobic fumed silica, in the form of a high purity white colloidal powder, which is created by subjecting hydrophilic grades with BET of 380 m2/g to chemical post-treatment with HMDS (Hexamethyldisilazane).
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For samples, technical data sheets (TDS), safety data sheets (SDS) or general questions, please contact a specialty chemical representative.
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Hydrophobic Fumed Silica

The Cary Company is an authorized distributor of Yichang Hifull Silicon Material Co., Ltd. Hydrophilic and Hydrophobic Fumed Silica.

For samples, technical data sheets (TDS), safety data sheets (SDS) or general questions, please contact a specialty chemical representative.

Request a Quote Request a Sample
Call Us: 630.629.6600