BENTONTIE, bleaching earth, calcium bentonite, sodium bentonite, clay, drilling mud, oil drilling mud, API, cement additive, additive, casting, foundry, refining oil, OCMA, active clay, white clay, animal food additive, bentonite factory, bentonite manufacturer, bentonite exporter, bentonite wholesaler, bentonite supplier,clay ,bleaching earth, API clay, OCMA clay,standard, international bleaching clay
Our bentonite for well drilling produced according to ISO13500: 1998 and some datas are better than standard.
Fertilizer grade bentonite is made as raw bentonite ore as raw mateiral, aftre dring,grinding and packing .
calcium base bentonite main use for foundary casting as general application.
sodium base benonite is using for foundary casting as sand or adhensive to make sure accurate and sleek surface.
Characteristics of well drilling bentonite:
Good suspension and thixotropism property;
Lower filter loss and good making motar property;
Easy making, easy adjust specific gravity of drilling fluid, etc
| Items\Type |
API Grade bentonite |
OCMA Grade bentonite |
| Viscometer data 600r/min ≥ |
30 |
30 |
| Plastic viscosity ≤ |
3 |
6 |
| Filtration cm3 ≤ |
15.0 |
16.0 |
| Moisture% ≤ |
13 |
13 |
| 75um scree residue % ≤ |
4.0 |
2.5 |
Audited Supplier 
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