ER-85 is a lipophilic emulsifier used in the inspection penetrant process to remove excess surface penetrant. ER-85 is a Method B emulsifier. It does not require a pre wash step and is used at full strength. It meets the requirements for low sulfur, low halogen, and low-sodium.
Lithophilic Emulsifiers (Method B)
QPL SAE AMS 2644
ASTM E1417, E165