Selective gas nitriding is done by use of special masking compound manufactured by SPS.
The areas where hardness is to be avoided during nitriding is coated with the masking compound. This ensures prevention of hardness in desired areas. Benefits of using anti nitriding compound made by SPS are:
- Prevents nitriding on areas of component where nitriding is not desired.
- Reduces consumption of ammonia gas during nitriding.





