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…