# Cerma STM-3 vs Slick 50 (PTFE Additives)

Slick 50 uses PTFE (Teflon) that coats temporarily. Cerma uses Nano Silicon Carbide that bonds permanently.

| | PTFE | SiC (Cerma) |
|---|---|---|
| Hardness | Soft | Mohs 9.5 (near diamond) |
| Melts at | 621°F | Stable to 4,892°F |
| Bonds to metal | No | Yes, permanently |

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