-- The Home Page of the Finishing Industry
23+ years of serious education, promoting Aloha,
& the most fun you can have in metal finishing smiley
    no popups, no spam
on this site
current topics
topic 9166

What is "red dip" used to check plating?



I have a question, it is related to metal finishing, but I don't want to finish anything. I was wondering if anyone knows what a liquid called "red dip" is, it is used in our Quality Assurance department. We manufacture aircraft landing gears for several large corporations, and do a lot of off load work. I have asked the employees in that area, all they say is that we are not supposed to have it, therefore I didn't see it.

Any ideas about what this could be would be greatly appreciated.


N. Tauber
- Wichita, Kansas, USA


Although I'm not familiar with "red dip", it is apparently a crack detection system or one step in a crack detection system.When a component may have been weakened by a crack, it is common to dip it or spray it with something that will be sucked into the crack by capillary action to accentuate the crack for visual detection, ultraviolet light detection, or whatever. I vaguely recall hearing of some two-part system using a red coating that would show through a subsequent white coating if the part was cracked, but I have no 'hands-on' knowledge of it. Ted Mooney, Teds signature
Ted Mooney, P.E.
Pine Beach, New Jersey

This public forum has 60,000 threads. If you have a question in mind which seems off topic to this thread, you might prefer to Search the Site

ADD a Comment to THIS thread START a NEW threadView CURRENT TOPICS

Disclaimer: It's not possible to diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations may be deliberately harmful.

  If you need a product/service, please check these Directories:

JobshopsCapital Equip. & Install'nChemicals & Consumables Consult'g, Train'g, SoftwareEnvironmental ComplianceTesting Svcs. & Devices

©1995-2018, Inc., Pine Beach, NJ   -   About   -  Privacy Policy
How Google uses data when you visit this site.