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Author Topic: Caulk for under dash area  (Read 3341 times)

Offline 76Texan

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  • 76 Scottsdale Owner
Caulk for under dash area
« on: December 26, 2016, 03:29:14 pm »
Hey all...

The worst rust in the cab was behind the AC, the rest was surface rust here and there. Going to go with POR15. Of course will scrape and clean all of the loose rust off. Was going to use some Lexel Caulk in various areas of the cab. However the seem running under the AC area there where the rust is and all along that will the caulk need to be more heat resistant?

Thanks much in advance!
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1976 Scottsdale K10

Offline VileZambonie

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Re: Caulk for under dash area
« Reply #1 on: December 26, 2016, 06:41:43 pm »
Seam Sealer but remove the rust first, prime and paint.
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Offline 1967KaiserM715

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  • 1985 GMC K1500 w/ 6.5 TD
Re: Caulk for under dash area
« Reply #2 on: December 26, 2016, 07:56:50 pm »
Not familiar with lexel , but automotive seam sealer is supposed to be resistant to certain chemicals and heat.


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Current Vehicles:1985 GMC K10(Daily) 1991 GMC K2500(Daily) 1975 Beetle(not running) 1985 Mercedes 300D(not running) 1952 M35    1967 M715(not running)
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Offline 76Texan

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  • 76 Scottsdale Owner
Re: Caulk for under dash area
« Reply #3 on: December 27, 2016, 04:42:10 pm »
Thnaks guys!

Noticed someone saying it was flexible more than other types. Just ordered some of the auto seam sealer, THX!
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1976 Scottsdale K10

Offline blazer74

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Re: Caulk for under dash area
« Reply #4 on: December 27, 2016, 07:16:39 pm »
You can buy it at Autozone.
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