Related Information


Dipping and Coating Operations (Diptanks)

Chapter 296-835, WAC

Effective Date: 10/01/02

Helpful Tools



WAC 296-835-100

For printing


A dip tank is a container holding a liquid other than plain water that is used for dipping or coating. An object may be completely or partially immersed (in a dip tank) or it may be suspended in a vapor coming from the tank.



Dip tanks that use a molten material (molten metal, alloy, salt, etc.) aren't covered by this chapter.

This chapter applies to

  • A dip tank that uses a liquid other than plain water, or the vapor of the liquid, to:
    • - Clean an object
    • - Coat an object
    • - Alter the surface of an object
    • OR
    • - Change the character of an object.
  • Draining or drying an object that has been dipped or coated.

Examples of covered dipping and coating operations include, but aren't limited to:

  • Paint dipping
  • Electroplating
  • Anodizing
  • Pickling
  • Quenching
  • Tanning
  • Degreasing
  • Stripping
  • Cleaning
  • Dyeing
  • Flow coating
  • Roll coating



You have to do a hazard assessment to identify hazards or potential hazards in your workplace and determine if PPE is necessary to protect your employees. See personal protective equipment (PPE), WAC 296-800-160, in the Safety and Health Core Rules, chapter 296-800 WAC.



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