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Permatex Ultra Black Question #4530476
09/30/17 04:48 PM
09/30/17 04:48 PM
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Merkava_4 Offline OP
Merkava_4  Offline OP
Joined: Jan 2007
Posts: 17,501
Clovis, CA
The instructions say to apply the product to ONE surface.

If I apply the product to BOTH mating surfaces, am I screwed ? frown

Re: Permatex Ultra Black Question [Re: Merkava_4] #4530481
09/30/17 04:51 PM
09/30/17 04:51 PM
Joined: Sep 2015
Posts: 6,075
Kalifornia Kollective
BrocLuno Offline
BrocLuno  Offline
Joined: Sep 2015
Posts: 6,075
Kalifornia Kollective
Will they both be wet at the same time? If so, you are OK. But why go to all the bother ... Put it on the receiving surface and gently place the other part and snug lightly. Torque after set smile


Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.
Re: Permatex Ultra Black Question [Re: Merkava_4] #4530485
09/30/17 04:55 PM
09/30/17 04:55 PM
Joined: Sep 2016
Posts: 524
Fairfax, VA
TinyVoices Offline
TinyVoices  Offline
Joined: Sep 2016
Posts: 524
Fairfax, VA
You are fine. I do this for corners of valve covers where the seal does a 90.


2010 Mazda RX8 Sport - 37k miles - ????
2006 Toyota Matrix XR AWD (Wife) - 130k miles - Valvoline Max Life 5w30
Re: Permatex Ultra Black Question [Re: Merkava_4] #4530494
09/30/17 05:05 PM
09/30/17 05:05 PM
Joined: Mar 2017
Posts: 677
West Ma.
rollinpete Offline
rollinpete  Offline
Joined: Mar 2017
Posts: 677
West Ma.
Originally Posted By: Merkava_4
The instructions say to apply the product to ONE surface.

If I apply the product to BOTH mating surfaces, am I screwed ? frown


Your all done start over again... spank


Pete.
97 Ford Expl.Sport 4.0 ohv 4wd 5spddrive185k miles
Last Change;
50/50 QSUD, QSHM. 5w30
Fram XG8A, Fram CA8141

Currently under the influence of oil shocked2

Re: Permatex Ultra Black Question [Re: BrocLuno] #4530505
09/30/17 05:18 PM
09/30/17 05:18 PM
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Merkava_4 Offline OP
Merkava_4  Offline OP
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Originally Posted By: BrocLuno
Will they both be wet at the same time? If so, you are OK. But why go to all the bother ... Put it on the receiving surface and gently place the other part and snug lightly. Torque after set smile


Yes, both sides were wet during assembly.

Surface A was the intake manifold and Surface B was the thermostat housing.

I didn't put a bead down, but instead I cake frosted the surfaces with a thin coat.

And another thing I'm not so sure on is that after assembly, I wiped off the squeeze out; is that a NO-NO ?

Re: Permatex Ultra Black Question [Re: Merkava_4] #4530578
09/30/17 07:11 PM
09/30/17 07:11 PM
Joined: Jul 2010
Posts: 19,263
PNW
ZeeOSix Offline
ZeeOSix  Offline
Joined: Jul 2010
Posts: 19,263
PNW
Originally Posted By: Merkava_4
And another thing I'm not so sure on is that after assembly, I wiped off the squeeze out; is that a NO-NO ?

That's fine, the sealant trapped between the two surfaces does all the sealing. The excess on the outside of the joint seam does little to nothing in terms of actually sealing.

Re: Permatex Ultra Black Question [Re: ZeeOSix] #4530621
09/30/17 07:50 PM
09/30/17 07:50 PM
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Merkava_4 Offline OP
Merkava_4  Offline OP
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Hey thanks ZeeOSix! I can relax now. smile2

Re: Permatex Ultra Black Question [Re: Merkava_4] #4530624
09/30/17 07:53 PM
09/30/17 07:53 PM
Joined: Mar 2006
Posts: 2,324
in the shop
sw99 Offline
sw99  Offline
Joined: Mar 2006
Posts: 2,324
in the shop
I've done both and not a noticeable difference when removing. Have you ever used the Right Stuff?


2016 Nissan Versa S 1.6L
2018 Subaru Outback 2.5i
2019 Ford F250 6.7L CCSB

Re: Permatex Ultra Black Question [Re: sw99] #4530633
09/30/17 08:06 PM
09/30/17 08:06 PM
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Merkava_4 Offline OP
Merkava_4  Offline OP
Joined: Jan 2007
Posts: 17,501
Clovis, CA
I haven't used the Right Stuff yet. The 5-minute working window would be cause for some anxiety unless I could lay a bead down as fast as the robots do. And then as expensive as it is, I'd be afraid of what's left in the container drying up.

Re: Permatex Ultra Black Question [Re: Merkava_4] #4530800
10/01/17 01:09 AM
10/01/17 01:09 AM
Joined: Jul 2010
Posts: 19,263
PNW
ZeeOSix Offline
ZeeOSix  Offline
Joined: Jul 2010
Posts: 19,263
PNW
I've used Ultra Black on dozens of projects and it's never failed to do the job. thumbsup

Re: Permatex Ultra Black Question [Re: Merkava_4] #4530803
10/01/17 01:12 AM
10/01/17 01:12 AM
Joined: Aug 2006
Posts: 9,883
Central Washington
Colt45ws Offline
Colt45ws  Offline
Joined: Aug 2006
Posts: 9,883
Central Washington
Originally Posted By: Merkava_4
I haven't used the Right Stuff yet. The 5-minute working window would be cause for some anxiety unless I could lay a bead down as fast as the robots do. And then as expensive as it is, I'd be afraid of what's left in the container drying up.

I stick it in the freezer. Slows the chemical reaction down significantly.


-Colton
2002 Ford Crown Vic PI 207k, Ex-Kootenai County, ID Unit #42
Down for engine swap
2003 Ford Crown Vic PI 75k
Castrol EDGE HM 5W30, Fram XG2
Re: Permatex Ultra Black Question [Re: Merkava_4] #4530816
10/01/17 01:43 AM
10/01/17 01:43 AM
Joined: May 2013
Posts: 2,160
Saskatchewan, Canada
Johnny2Bad Offline
Johnny2Bad  Offline
Joined: May 2013
Posts: 2,160
Saskatchewan, Canada
I think the "one surface rule" is for when you wait the 20 minutes for it to skim set and then assemble. If you are assembling immediately, I don't think it matters, but be careful you don't apply too much (use half the recommended bead size on both surfaces). If you over-apply blobs of cured RTV can break off the assembly and clog oil passages. A continuous bead is all that's needed.

You're probably OK that way if you skim coated the parts and you didn't see too much excess squeeze out from the outside (visible) portion of the assembly, plus you were doing water passages, not oil-wetted ones.


'57 FL Straight 50 wt
'90 Miata 1.8L w/Rotrex Supercharger [Mobil1 0W-40]
'96 Ram 1500 [3.7L Mobil1 0W-20 / 1L 15W-50]
'01 PT Cruiser [Mobil1 0W-40]
Re: Permatex Ultra Black Question [Re: Johnny2Bad] #4531429
10/01/17 05:18 PM
10/01/17 05:18 PM
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Merkava_4 Offline OP
Merkava_4  Offline OP
Joined: Jan 2007
Posts: 17,501
Clovis, CA
So far no leaks, but I did give it a full 24 hour cure time before I even poured the coolant back in. The new thermostat won't let the engine cool down to 176F with the air conditioner on like it used to. It's holding the engine to 198F with the A/C on.

Re: Permatex Ultra Black Question [Re: Merkava_4] #4531770
10/02/17 04:25 AM
10/02/17 04:25 AM
Joined: Jan 2011
Posts: 2,826
N.Ohio
Lubener Offline
Lubener  Offline
Joined: Jan 2011
Posts: 2,826
N.Ohio
Yes, both sides were wet during assembly.

Surface A was the intake manifold and Surface B was the thermostat housing.

I didn't put a bead down, but instead I cake frosted the surfaces with a thin coat.

And another thing I'm not so sure on is that after assembly, I wiped off the squeeze out; is that a NO-NO ? [/quote]

I would have used a gasket with Permatex 2 instead for the thermostat housing.

Last edited by Lubener; 10/02/17 04:27 AM.

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