Penetrant inspection systems are designed for testing parts of equipment or machinery for defects or inconsistencies. These systems can be broken down into hydrophilic systems or lipophilic systems depending on which test needs to take place. Lipophilic emulsifiers remove excess penetrant while the mixture is draining and then diffuses into the remaining penetrant. Hydrophilic emulsifiers perform the same function as lipophilic except they do not diffuse into the penetrant. This makes them less sensitive to variation and removal time. To determine which system you need, please give us a call at 1-847-577-3980 or send an email to info@bergeng.com. Our knowledgeable staff is there to help.