Hydrophobic Fumed Silica R274
Description:
HJSIL R274 is a hydrophobic fumed silica after-treated with Dimethyldichlorosilane (DDS).
Applications:
Room temperature vulcanized (RTV), especially electronic potting compounds
Adhesive and Sealants
Inks and Powder Coatings
Hydrophobic Silica In Coatings features:
Hydrophobic
Thickening thixotropic and reinforcing agent
Improves RTV silicone rubber with good shelf life
Improves Rheological control of adhesives
Improve the Viscosity of Coatings
High free flow and anti-caking of powder coatings
Physical and chemical data:
Properties and test methods
Unit
Typical Value
Standardization
Specific surface area (BET)
m2/g
170 ± 25
GB/T 20020
pH value (in 4% dispersion)
3.8 ~ 5.0
GB/T 20020…