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RTV - High Temp Case

 
  #1  
Old 05-13-2019, 05:22 PM
NightTrain98
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Default RTV - High Temp Case

I'm looking for a temperature rating for silicon used when putting cases back together. Copper is 700, red 650, black 500. I believe their ratings

I'm coating my cases so I prefer a black or clear.

But what temperature rating I need and brand recommendations?
 
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Old 05-13-2019, 05:26 PM
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Most I know use Yamabond
 
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  #3  
Old 05-13-2019, 06:09 PM
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The regular black stuff works fine, no need for high temp.
 
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Old 05-14-2019, 06:14 AM
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i agree,the black works fine,put on very thin coat.DONT use yamabond
 
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Old 05-14-2019, 09:17 AM
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No need for high temp. Three Bond 1211 or 1215 have worked for me and specs say 250*C. Like Kirby says, very thin coat is all that is required. It is gray in color but any that is squeezed out can be trimmed. The consistency makes is easier to apply a very narrow bead. Videos on the net illustrating proper application are available.
 
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Old 05-14-2019, 01:58 PM
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just buy the factory stuff, it is a floromastic base and not silicone. the dealers sell it and if not, a gm dealership.
 
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Old 05-14-2019, 02:11 PM
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Originally Posted by prodrag1320 View Post
i agree,the black works fine,put on very thin coat.DONT use yamabond
Ok, seriously now, what's wrong with Yamabond?
 
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Old 05-14-2019, 02:26 PM
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I went to O'Reilly and got a tube of Permatex Motoseal 1 Gasket maker and it worked great. I have just 3000 miles on this build without a problem.
 
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Old 05-15-2019, 06:39 AM
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Originally Posted by Mattbastard View Post
Ok, seriously now, what's wrong with Yamabond?
don't like it,wont use it.makes things way too hard to get back apart,maybe on panhead on knuckle stuff were the fit of parts isn't that great,but defanatly not needed on more modern motors
 
 


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