Parker Suparcase Surface Coating (Ferrule-Hardening):
- Applied to the back ferrule, which then forms a carbon supersaturated surface layer by altering the oxide passive layer
- Enhances the corrosion resistance and hardness rating of STM 316 stainless steel
- Does not require high temperatures
- Seals most aggressive fluids & chemicals to resist internal and external corrosion
- Allows repeated disassembling and reassembling with no loss of sealing integrity
- Makes surfaces smooth and free of defects
- Ensures proper lubrication between parts