Sealer of choice?

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Old

Dec 14, 2024 | 01:57 PM

#1

jrhotes

Thread Starter

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Joined: Sep 2020

Posts: 29

From: Ponte Vedra Beach FL

Sealer of choice?

Planning to replace water pump and thermostat.
In the “old” days I always used Permatex #2.

What is the preferred sealer in todays world?

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Old

Dec 14, 2024 | 02:44 PM

#2

oldcutlass

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Joined: Oct 2009

Posts: 42,496

From: Poteau, Ok

I use Permatex Hi Tack gasket sealant on the pump side or thermostat housing side. The gasket is what seals the parts.

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Old

Dec 14, 2024 | 04:20 PM

#3

Run to Rund

Registered User

Joined: Mar 2008

Posts: 4,026

When in doubt, I use a film of Ultra Black RTV on a gasket, both sides.

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Old

Dec 15, 2024 | 07:47 AM

#4

joe_padavano

Old(s) Fart

Joined: Mar 2007

Posts: 50,802

From: Northern VA

Quote:

Originally Posted by Run to Rund

When in doubt, I use a film of Ultra Black RTV on a gasket, both sides.

X2, but I normally don't need it unless the front cover is rust pitted.

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