How long do you let your Permatex cure before refill? -
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post #1 of 10 Old 09-16-2006, 07:05 PM Thread Starter
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How long do you let your Permatex cure before refill?

I just changed the diff fluid in a D44 and I'm anxious to refill it. When I've done it before, I've used the red stuff and let it sit overnight. This time I used the Ultra black, and I need the truck tomorrow morning. So, do I fill it tonight or get up early tomorrow? Package says it takes 24 hrs for a full cure, but that's merely a suggestion, right? Thanks!

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post #2 of 10 Old 09-16-2006, 07:08 PM
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Heck I've always filled mine up within an hour.

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post #3 of 10 Old 09-16-2006, 07:22 PM Thread Starter
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Good. I'll wait for the end of the Tennessee/Florida game and refill. It's late 2nd quarter now.
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post #4 of 10 Old 09-16-2006, 07:24 PM
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5 minutes here, no leaks.
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post #5 of 10 Old 09-16-2006, 07:27 PM
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I figure it usually takes me 10 or 15 minutes to put the second cover back on that would be about how long i wait.
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post #6 of 10 Old 09-16-2006, 08:28 PM Thread Starter
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It's done and it's dry. Thanks for the help!
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post #7 of 10 Old 09-18-2006, 11:19 AM
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I use the gray Mopar Gear Lube RTV. It's specifically designed for use with gear lube, and can be applied even if you don't clean the old fluid off of the mating surfaces. I let it set up for about 20 minutes, although I don't think it's necessary.

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post #8 of 10 Old 09-18-2006, 11:23 AM
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By the time you had typed this it was ready.
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post #9 of 10 Old 09-18-2006, 11:32 AM
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Yep. 5 minutes here. I've used blue and black with no problems.

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post #10 of 10 Old 09-18-2006, 01:14 PM
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I have always waited about an hour, and have never had a problem with leaks. But in reality, you prob can basically fill it right away/within a few minutes. If you were to take it to a mechanic, they would put the cover back on and fill it right away because they dont have time to waste waiting around for it to dry. So if they can do it that quick and not have leaks, you can too!

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