HJSIL Fumed Silica R272

Hydrophobic Fumed Silica R272 Description:HJSIL R272 is a hydrophobic fumed silica, originally from Hydrophilic Silica with DDS Treatment.Applications:Room temperature vulcanized (RTV), especially electronic potting compoundsAdhesive and SealantsInks and Powder Coatings   If you have any questions, please feel free to contact us for a free inquiry, and we will arrange professional personnel to answer you in time.Physical and chemical data: Properties and test methods Unit Typical Value Standardization Specific surface area (BET) m2/g 110 ± 25 GB/T 20020 pH value (in 4% dispersion)   3.8 ~ 5.0 GB/T 20020 Loss on drying (2 hours at 105 °C) Wt% ≤ 1.0 GB/T 20020 Loss on ignition (2 hours at 1000 °C,based on material dried for 2 hours at 105 °C) Wt% ≤ 2.0 GB/T 20020 Sieve residue (45 μm) mg/kg ≤ 250 GB/T 20020 Silica content (based on ignited material) Wt% ≥ 99.8 GB/T 20020 Tamped density (based on material dried for 2 hours at 10…