AEROSIL R 974
Hydrophobic fumed silica
AEROSIL® R 974 is a hydrophobic fumed silica aftertreated with DDS (Dimethyldichlorosilane) based on a hydrophilic fumed silica with a specific surface area of 200 m2/g.
Properties and test methods | Unit | Value |
Specific surface area (BET) | m²/g | 150 - 190 |
pH value in 4% dispersion | - | 3.7 - 4.7 |
Loss on drying* 2 hours at 105 °C | % | ≤ 0.5 |
C content | % | 0.7 - 1.3 |
Tamped density* modified | g/l | approx. 50 |
SiO2 content based on ignited material | % | ≥ 99.8 |
Application
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Silicone rubber and silicone sealants
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Paints and coatings
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Negative toner
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Adhesives
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Coating polymers
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Cosmetics
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Our products have passed various industry certifications