Candok is naturally occurring sodium bentonite that exhibits outstanding characteristics for green sand molding. It imparts very high green compression strength and in the typical manner of sodium bentonite has a moderately high dry strength.
3Candok differs from other clays in the sense that it has an extraordinary ability to retain bonding ability after heat exposure. The foundry is able to maintain active clay levels with reduced additions of bentonite or replacement sand by the help of this superior thermal durability. This feature makes Candok ideal for applications that require high heat loads or high melt temperatures, such as iron foundries operating with low sand-to-metal ratios or steel foundries. Besides cost savings from lower bentonite adding one additional benefit is that there will be less waste fines to discard so disposal costs will be reduced.
3Candok differs from other clays in the sense that it has an extraordinary ability to retain bonding ability after heat exposure. The foundry is able to maintain active clay levels with reduced additions of bentonite or replacement sand by the help of this superior thermal durability. This feature makes Candok ideal for applications that require high heat loads or high melt temperatures, such as iron foundries operating with low sand-to-metal ratios or steel foundries. Besides cost savings from lower bentonite adding one additional benefit is that there will be less waste fines to discard so disposal costs will be reduced.
Technical Specifications
| Color | Brown-Cream |
| Swelling Index |
18-25 |
| Swelling Time |
Instantaneous |
| Moisture | 9% max. |
| Green Compression Strength | 1.800-2.300 gr/cm2 |
| Dry Compression Strength |
2.800-3.500 gr/cm2 |
| Dry Screen (Passing 75µm) |
91,5% |
| Montmorrillonite |
75% min. |
| Sintering Temperature | 1.050-1.150 oC |