Hjsil® R110 is a high-purity, hydrophobic fumed silica treated with poly-dimethylsiloxane. This white colloidal powder is designed for use in a variety of applications, offering excellent anti-settling and thickening properties. It is compatible with vinyl esters, polyurethanes (PU), and epoxies (EP), making it suitable for composite materials and industrial applications where rheological control is essential. In addition to its role as a thickener, Hjsil® R110 provides enhanced stability in formulations, helping to prevent settling and improve overall performance. Its hydrophobic nature makes it ideal for applications requiring water resistance, and it is especially effective in systems where excellent flow and dispersion characteristics are needed. Available in bags, this silica is commonly used in coatings, adhesives, and sealants, as well as in elastomer applications.

Chemical Name: Silica, Hydrophobic, Fumed

Chemical Family: Silica, Silicon-based Compounds

Compatible Polymers & Resins: Epoxies (EP), Polyurethanes (PU), Vinyl Esters

Technical Data Sheet

Enhanced TDS

Identification & Functionality

Features & Benefits

CASE Ingredients Features
Key Properties
  • Thickening and thixotropy of complex polar liquids, for example epoxy, polyurethane or vinyl ester resins.
  • Thickening and thixotropy of cable gels for fiber optic cables.
  • Anti-settling agent for heavy fillers.

Applications & Uses

Properties

Physical Form
Physico-Chemical Properties
ValueUnitsTest Method / Conditions
Carbon Content (based on material dried for 2 hours at 105°C)max. 0.2wt%GB/T20020
Tamped Density (based on material dried for 2 hours at 105°C)40 - 60g/lGB/T20020
Silica Content (based on ignited material)min. 99.8wt%GB/T20020
Loss on Ignition (2 hours at 1000°C, based on material dried for 2 hours at 105°C)4.0 - 6.0wt%GB/T20020
Loss on Drying (2 hrs at 105°C)max. 0.5wt%GB/T20020
Specific Surface Area120 - 140m²/gGB/T20020
Specifications
ValueUnitsTest Method / Conditions
pH Value (in 4% dispersion)4.0 - 7.0-GB/T20020

Packaging & Availability

Packaging Type
Packaging Information

Hjsil® R110 is supplied in 10kg kraft paper bags. We recommend to store the product in closed containers under dry conditions and to protect the material from volatile substances.