×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

loctite 51609 on npt fittings

loctite 51609 on npt fittings

loctite 51609 on npt fittings

(OP)
Has anyone used this heavy duty anti seize on npt's. We are having a big issue with getting our fittings to seal using this lubricant. hoping to get any tips on eliminating the leaks during assembly so we don't have to go back and torque them down more or have to remove the fitting all together.

RE: loctite 51609 on npt fittings

It's not a sealant; why would you expect it to seal?

It's probably the wrong Loctite for what you are doing. Ask Henkel to send someone along to look at your application and make a specific recommendation.

Mike Halloran
Pembroke Pines, FL, USA

RE: loctite 51609 on npt fittings

(OP)
I should have said in the original post that this anti seize is mandated and spec'ed by the customer and we cannot use anything else for sealing or lubricating. I know and agree that this is not the right stuff to be using, just wanted to search out to see if anyone else has come into this issue and had found a solution.

Thanks

RE: loctite 51609 on npt fittings

Hmmmm.... 51609 is a lubricant, not a sealant?

Best to you,

Goober Dave

Haven't see the forum policies? Do so now: Forum Policies

RE: loctite 51609 on npt fittings

When the problem is that the customer has mandated and specified the completely wrong stuff, there may not be a solution other than repeated assembly, test and disassembly.

It MIGHT be possible to social-engineer your way into the customer's staff and find out which person is responsible for the unfortunate specification, get the backstory, and figure out how to solve the problem that started your misery. ... but it requires a delicate touch, and may backfire, badly, anyway.

Mike Halloran
Pembroke Pines, FL, USA

RE: loctite 51609 on npt fittings

(OP)
thanks for the advice, Mike, That will most likely have to be our next steps in solving the issue.

RE: loctite 51609 on npt fittings

Well just maybe the customer has decided that they want you to use a thread lubricant for ease of disassembly and that your fittings should seal without having to use a thread sealant.

It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts. (Sherlock Holmes - A Scandal in Bohemia.)

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources