Thread Sealant

[mike r]

I'm installing my new guages and wondered if anyone knows the brand of red thread sealant used by Cummins for their sending units and heater line connectors? Got too many connections to make so I can't afford a leak. Thanks, Mike

 

[Oil Burner]

I've heard Heineken works well.

-Jason

 

[mike r]

Southern Comfort reminds me of Permatex form a gasket. Tastes similar too.

 

[JohnE]

It is called Vibraseal®. It is good for first time applications IF the vendor applied enough material. Most do not apply the recommended amount.

For a second time or for peace of mind on the first use, apply a liberal dose of PST pressing completely into the threads and staying back at least a turn to avoid getting the gunk in the system.



How does Loctite taste?

 

[Joseph Donnelly]

Cheap old Permatex #2 does fine. I have never been able to finish a tube of it

Leaks and oozing make it so nasty that eventually I get too embarassed and throw it away, buy a new tube.

 

[JohnE]

Last I looked, Loctite does not recommend applying Permatex gasket formulas over Vibraseal.

Permatex #2 alone is good as a thread sealant. Aviation formula is much better.

 

[A Johnson]

Originally posted by JohnE

How does Loctite taste?

Kinda like antifreeze :{



A Johnson

 

[JohnE]

ding ding ding! We have a winner!



Saccharin is an ingredient in Loctite. Also much safer than ethylene-glycol.

 

[mike r]

Obviously you've never done much mechanical work on your wife's vehicle while she is hecling you while your fixing a leak she created after driving over a parking stop in a lot. The antifreeze taste is similar yet not as smoothe. Kinda like pure gasoline that has set out in the sunn for weeks in the summer. Old Milwaukee comes to mind. Thanks fellas. John, Minnesota is the best kept secret in this country. Joe, I have to get out there to visit my sister in Reno to see the beautiful land of NV.

 

[nickleinonen]

how about just ordnary plumbers dope? i use it at work on everything and it seals pretty good [heck, i've used it on 37°jic fittings that were beat up to seal it]

 

[krs]

I just used the last of a roll of teflon tape. Think i opened it 20 years ago, at least.

 

[PJereb]

Loctite PTFE/Anaerobic Pipe Thread Sealant



Loctite makes some Anaerobic pipe thread goop that is bulletproof. Look it up to make sure you are using it for the correct application. I use 565 on everyhthing metal.



You can get it, and other neat stuff from

http://www.mcmaster.com/



They have it listed under "Fastening and Sealing" about 2/3rds of the way down the listing.



Click on "Thread Sealants"



I put the link below, it may or may not work...



http://www.mcmaster.com/asp/loadpagerange.asp?begin=3143&end=3145&qi=

 

[Ncostello]

I spoke with a LocTite rep on the phone one day for about an hour regarding thread sealant for diesel under low pressure. After a while... he wouldn't recommend anything for me including 565. He never was sure about the diesel part of it.



Thus I just used #2 Permatex per illflem and haven't had a leak since. I would however like to try #1. I think its the same but gets semi solid after a little while.



Some folks use never-seize as a sealant. The can says it seals up hydraulic fittings. Never tried it however.

 

[PJereb]

Sealant garble.



I dug up the technical data sheet for Loctite 565. I also put the link below for anybody interested. I still feel that it is a great product and is 100% OK to use with any oil, fuel or antifreeze. The only weakness is break fluid.



On the data sheet there is a list of Chemical / Solvent Resistance test results.



"Technical Data Sheet Product 565

TYPICAL APPLICATIONS

Recommended for sealing metal tapered pipe threads and

fittings up to 5cm (2 inches) National Pipe Thread (NPT)) for

industrial applications in the chemical processing, petroleum

refining, pulp/paper, waste treatment, textile, utilities/power

generation, marine, automotive, industrial equipment, gas

compression and distribution industries. It is also

recommended for industrial plant fluid power systems. "





Motor Oil 87„aC 100% Strength after 30 days

Unleaded Gasoline 87„aC 100%

Phosphate ester 87„aC 100%

Isopropyl alcohol 87„aC 100%

Air reference 87„aC 100%

Auto trans fluid 87„aC 100%

Brake fluid 87„aC 92%

Distilled water 100%





Check out the data sheet...

http://68.72.74.113/TDS/product565.pdf



Off to go BBQ dinner,

Peter