ARMINAKIL BENTO · Bentonite and coal dust blend
BENTO MIX
A combined product for foundries that require bentonite and coal dust in a single prepared mixture.
BENTO MAX typical values come from the supplied BENTOMAX analysis. ECO, PLUS and MIX show rounded MAX references only, not verified grade-specific results. Formulations and dosage require confirmation.
Product characteristics
- Bentonite and coal dust in one product
- Simplified dosing
- Blend ratio agreed with customer
Recommended applications
- Iron foundries using coal dust additives
- Green sand systems seeking better surface finish
Industrial advantages
- One material to store and dose
- Supports surface finish
- Fewer handling steps
Technical specifications
ECO and PLUS figures are rounded BENTO MAX reference values only, not measurements or specifications for these grades. MIX figures refer only to the bentonite component, not the finished coal-dust blend. Grade-specific results and blend ratios require separate laboratory confirmation.
| Moisture content (%) | ≈ 9 |
| Passing 75 µm (%) | ≈ 85 |
| FSI swelling index (ml) | ≈ 34 |
| MB absorption (%) | ≈ 585 |
| 600 rpm reading (7%) (Cp) | ≈ 42 |
| 300 rpm reading (7%) (Cp) | ≈ 36 |
| Green compression strength (N/cm3) | ≈ 9.8 |
| Wet tensile strength (N/cm3) | ≈ 0.35 |
| MBA (methylene blue) (Meq/gm) | ≈ 359 |
| Durability at 550 °C (%) | ≈ 70 |
| FL (fluid loss) (ml) | ≈ 16 |
| Z (brightness) (%) | ≈ 40 |
| S.S. (settleable solids) (%) | ≈ 16 |
| Montmorillonite content | To be confirmed |
| Coal dust ratio | To be confirmed |
| Volatile matter | To be confirmed |
BENTO MAX: typical reference values transcribed from the supplied BENTOMAX product data sheet, not guaranteed batch specifications. Units are reproduced as printed; confirm units and suitability with the laboratory before use.
Packaging options
- 25 kg bags
- Big bags
- Bulk / customer-specific packaging on request