Zeco DMA 400, North American Asphaltum (Gilsonite) | |
| Softening point | 400 deg F |
|---|---|
| Colour of powder | Black - Brown |
| Specific gravity | 1.05 - 1.10 at 25 deg C |
| Sulphur | 0.3% |
| Particle size | Pulverized to Drilling Industry Standards |
| Penetration | 0 |
| Fixed carbon | > 20% |