|Monthly Tech-Tip |
Alternate Names: Ibex-200 Bentonite, Ibex 200 Bentonite
Description: Calcium Low-swell Bentonite
A California calcium, low swelling, colloidal type bentonite clay. It is prime for water impedance, asphalt coating applications, drilling mud and is also used in such products as paints, adhesives and cleaning compounds where absorption and body are needed. It is the most grit-free bentonite produced for commercial scale.
Specific Gravity: 2.6
Apparent Density (lbs/cu. ft): 47 for 200 mesh, 60 for 50 mesh
Tapped Density (lbs/cu. ft): 73/83
Dry Brightness: 56 for 200 mesh, 51 for 50 mesh
Bentonite can make a clay body instantly plastic, only 2-3% can have a big effect. It also suspends slurries so they don't settle out and slows down drying.
Clays that are not kaolins, ball clays or bentonites. For example, stoneware clays are mixtures of all of the above plus quartz, feldspar, mica and other minerals. There are also many clays that have high plasticity like bentonite but are much different mineralogically.
|By Tony Hansen|
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