CAB-O-SIL M-7D fumed silica, the densed form of CAB-O-SIL M-5 fumed silica, is a medium-high surface area fumed silica that reinforces silicone rubber. The higher bulk density of CAB-O-SIL M-7D fumed silica allows for faster incorporation and easier handling.
| Supplier | |
|---|---|
| Industry | Adhesives, Automotive & Transportation, Building & Construction, Electrical & Electronics, Paints & Coatings |
| Additive Classification | Fumed Silica, Thixotropic Agent |
CAB-O-SIL M-7D fumed silica is suitable for use in the reinforcement of silicone rubbers, including heat-cured rubber, high temp vulcanizing or high consistency rubber (HTV or HCR) and liquid silicone rubber (LSR), in which it can increase hardness, tensile strength and elongation. Due to the hydrophilic surface of CAB-O-SIL M-7D fumed silica, further modification of its surface is necessary to prevent crepe hardening.
With use of a densed, higher bulk density silica, such as CAB-O-SIL M-7D fumed silica, the use of very high shear dispersion equipment is recommended to achieve adequate dispersion of the silica. The higher bulk density of thisproduct facilitates faster wet-in or incorporation into viscous polymer systems.
Brand:Cabot
B.E.T. Surface Area：200 m2/g
pH (4% aqueous slurry)： 3.7 – 4.3
325 Mesh Residue (44 microns)： 0.02% max.
Tamped Density： 50 g/l
Loss on Heating*： < 1.5%
Specific Gravity ：2.2 g/cm3
Wt. per gallon： 18.3 lb
