It is used to remove grease and dirt adhering to the surface of the processing materials and to prepare for the next step. Typical products are listed according to their function and target metal.
| Powerful dipping type | No.146K |
| Dipping type for non-metal | No.104S |
| Spraying type | No.139C |
| Spraying type | No.137LC |
| Degreasing enhancer | No.2610 |