|Monthly Tech-Tip |
Description: WHITE FIRING BENTONITE
From Milwhite Inc., Box 15038, HOUSTON, TX 77220 Phone 713-675-0961 FAX
Is is a natural select calcium montmorillonite.
Specific Gravity: 2.5-2.75
Moisture as produced: 12-14%
Color: Off White raw (Beige/White at 1800F)
On 100 mesh wet: .1
On 200 mesh wet: 3.0
Bulk Density: 37 lbs/ft3
Packed Density: 58
Swelling Index (ml/2 gm): 3.0
It is available in 50 lb or 2000 lbs bulk bags.
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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