TheSamba.com :: View topic - Permatex Form-A-Gasket No. 2

Sat May 14, 2016 11:45 am

I have searched on this forum and have found that people have used Permatex (Aviation) Form-A-Gasket No. 3 to seal engine cases, but nothing on the No. 2 version. Has anyone used or thinks that Permatex Form-A-Gasket No. 2 is alright to seal the case? It says that it is non-hardening by the number 2 designation, which is why I am wanting to use it.

Here is a link to what I am talking about.

https://www.permatex.com/products/gasketing/permatex-form-a-gasket-no-2-sealant/

Sat May 14, 2016 12:40 pm

it's messey...

Sat May 14, 2016 12:44 pm

Messy in what way? So should I just stick with the Permatex Form-A-Gasket No. 3 in the can?

Sat May 14, 2016 1:09 pm

Both same products, just different packaging. Messy but the only thing you should use.
When done cleans up well with alcohol.

Sat May 14, 2016 1:12 pm

Thanks, I appreciate the response. I will just use a paint brush to apply to the case.

Thanks for the alcohol tip, I am sure that will come in handy.

Sat May 14, 2016 1:34 pm

Yes alcohol takes it off like buttah, but keep in mind ethanol is another form of alcohol so if you ever get gas in the oil (stuck float, carb leak) it'll remove the sealer too. I've gone to Curil T because of that possibility myself.

Sat May 14, 2016 1:43 pm

busdaddy wrote: Yes alcohol takes it off like buttah, but keep in mind ethanol is another form of alcohol so if you ever get gas in the oil (stuck float, carb leak) it'll remove the sealer too. I've gone to Curil T because of that possibility myself.

Do really think a hot engine case and oil is going to trap ethanol vapor in between the torqued case halves and wash away the sealant?
Wouldn't the vapors just blow out of the crank case breather?
Just questions.

They do say non-drying but that's a technicality, really, because it does evetually dry rock hard.

Sat May 14, 2016 2:59 pm

2,3,300 and aviation are all very similar.
I think avaitaion is thinnest, but after awhile, if you let some of the solvent evaporate out it gets thicker. Maybe eventually it will revert back to #2 :wink:

Sat May 14, 2016 3:39 pm

Those are ancient....and Permatex has far better products for this with greater heat and oil resistance. Ray

Sat May 14, 2016 4:02 pm

I like Gasgacinch. Even comes with a brush as part of the screw-off top.

Sat May 14, 2016 4:26 pm

I use the 300 sealer mostly on parts that seal coolant (the water/g;ycol kind)
it does a great job at that, and sometimes on the top half of VW cases, and other similar two piece precision assemblies, like outboard engines.
It might not hold up FOREVER, but it won't hold the case halves apart and mess with the bearing crush.

hylomar blue was the main competitor for non-hardening sealer, and is probably more durable product anyhow since it is actually ethanol resistant.
permatex copied it, permatex part number #85420

Sat May 14, 2016 4:47 pm

Howard 111 wrote: I like Gasgacinch. Even comes with a brush as part of the screw-off top.

Every can of gasgacinch I've bought has had a fuzzball; like PVC glue. The permatex aviation has a brush in cap, but I always cut it off and use a separate brush. Otherwise it's like using a tennis racket to swat a fly.

Sat May 14, 2016 5:18 pm

raygreenwood wrote: Those are ancient....and Permatex has far better products for this with greater heat and oil resistance. Ray

That sounds great meantime myself and the two shops in town used this ancient product for well over 30 years and built thousands of engines. This particular can I've had for almost twenty years, when it gets low I add more its my lucky can has never failed us,why change now? But I know others that use nothing but gasgacinch, maybe there is no correct answer. Permatex is cheap and it works, I'm a cheap bastard that's it.

Sat May 14, 2016 5:37 pm

True, there is no single correct answer
There are several definite wrong answers though, and a few maybe's. I just used the permatex aviation and it was fine, but it's not my favorite. Lots of people swear by Curil; I swear everything I try it on weeps oil. Go figure. I keep a few tubes of three bond around lately, because it hasn't let me down.

Sat May 14, 2016 6:03 pm

Three bond is an australian company that makes over 100 sealers.
I don't know enough about their history to know what the flagship product was. do you know?
(locktite=262 threadlocker, permatex=#2, vice grip=locking pliers)
Three bond =??

Sat May 14, 2016 8:16 pm

TheStanfordWagen wrote: I have searched on this forum and have found that people have used Permatex (Aviation) Form-A-Gasket No. 3 to seal engine cases, but nothing on the No. 2 version. Has anyone used or thinks that Permatex Form-A-Gasket No. 2 is alright to seal the case? It says that it is non-hardening by the number 2 designation, which is why I am wanting to use it.

Here is a link to what I am talking about.

https://www.permatex.com/products/gasketing/permatex-form-a-gasket-no-2-sealant/

I love this stuff but have not used it for case halves cause its thicker then the Aviation. I was scared it be like sealing the case halves with RTV

Sat May 14, 2016 9:23 pm

modok wrote: Three bond is an australian company that makes over 100 sealers.
I don't know enough about their history to know what the flagship product was. do you know?
(locktite=262 threadlocker, permatex=#2, vice grip=locking pliers)
Three bond =??

I wanted to type the sealant#, but had to check to be sure. It's 1184. Sticky, spreads thin, pretty tear resistant, gas and oil resistant. Worst thing is that it's such a bitch to remove from anything you put it on, but that's the point right?
For $12 a tube amazon has it to my mailbox in 24 hours

Sat May 14, 2016 10:43 pm

cool! :D That seems the austrailian version of japanese motorcycle case sealer snot.

I've read manuals that say "assemble with three bond" no part number or anything, and still don't know what they meant.
Maybe the writer just asked the guys on the shop floor what it was and the reply was "three bond" LOL

Sun May 15, 2016 3:57 am

Motoseal by Loctite same thing awesome stuff,I even use it for deep sumps No gasket,just the gray motoseal sealer

Sun May 15, 2016 10:25 am

Zundfolge1432 wrote: raygreenwood wrote: Those are ancient....and Permatex has far better products for this with greater heat and oil resistance. Ray

That sounds great meantime myself and the two shops in town used this ancient product for well over 30 years and built thousands of engines. This particular can I've had for almost twenty years, when it gets low I add more its my lucky can has never failed us,why change now? But I know others that use nothing but gasgacinch, maybe there is no correct answer. Permatex is cheap and it works, I'm a cheap bastard that's it.

I always notice that vw engines built with Aviation keep sealed nicely. That ultra slick assembly lube you have in the background works great too!

Jeff