Physical and Chemical Properties
Properties and Test Methods | Unites | Value |
SiO2Content ISO3262-19 | % | ≥ 99.8 |
Specific Surface area (N2) –Tristar, multi-point ISO9277 | m2/g | 170 |
Loss on Drying， 2h at 105ºC ISO787-2 | % | ≤ 0.7 |
Ignition Loss, 2h at 1000ºC ISO 3262-1 | % | ≤ 2.5 |
pH Value 4% in dispersion | / | 4.1 |
Tamped Density ISO 787-11 | g/l | 50 |
Carbon content Internal method | % | 1.0 |
Package | kg | 10 |
Silphobic A74 is hydrophobic fumed silica with a specific surface area of 170 m2/g
Applications
Ø Silicone rubber and silicone sealants
Ø Paints and coatings
Ø Printing inks and toner
Ø Adhesives
Ø Cable compounds and gels
Ø Plant protection
Properties
Ø Hydrophobic component for thickening and reinforcement of RTV-1 K silicone sealants.
Ø Improves shelf-life of silicone sealants.
Ø Water resistant, hydrophobising of liquid systems.
Ø Rheology control of (complex) liquid systems.
Ø For use in coatings as anti-settling agent, for pigment stablilization and improvement of corrosion protection.
Ø Improves hydrophobicity and rheology of offset printing inks.
Ø Improvement and maintenance of free flow and anti- caking characteristics of powders.
