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General Category >> Rubber Side Down! >> Silicone sealant attaching exhaust?
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Message started by mr. s on 06/14/11 at 17:58:31

Title: Silicone sealant attaching exhaust?
Post by mr. s on 06/14/11 at 17:58:31

I just got in my BCB exhaust and tossed it on with some tan wrap.

The BCB video tells me to put some silicone to seal between the pipes. How necessary is this?

Title: Re: Silicone sealant attaching exhaust?
Post by 04 Savage on 06/14/11 at 18:38:32

Very recommended to put on to fix exhaust leak that causes unnecessary backfires

Title: Re: Silicone sealant attaching exhaust?
Post by 12Bravo on 06/15/11 at 06:03:25

I ended up welding my BCB drag pipe onto the header, no more leaks.

Title: Re: Silicone sealant attaching exhaust?
Post by einheit13 on 06/15/11 at 07:35:35

Permatex/RTV super copper....

Title: Re: Silicone sealant attaching exhaust?
Post by dasch on 06/15/11 at 12:20:05

+1. Smear some of it, won't hurt. Mine is welded.

Title: Re: Silicone sealant attaching exhaust?
Post by babyhog on 06/15/11 at 13:07:01

This stuff???

http://www.permatex.com/products/Automotive/automotive_gasketing/gasket_makers/auto_Permatex_Ultra_Copper_Maximum_Temperature_RTV_Silicone_Gasket_Maker.htm

http://www.permatex.com/images/DisplayImage.asp?210|/images/ProductPhotos/81878.jpg

Title: Re: Silicone sealant attaching exhaust?
Post by EJID on 06/15/11 at 15:46:29

I used this stuff when I put on my latest muff. Seems to have sealed everything off well, but I have not had it on for very long yet.

http://www.permatex.com/products/Automotive/automotive_gasketing/gasket_makers/auto_Permatex_High-Temp_Red_RTV_Silicone_Gasket.htm

http://www.permatex.com/images/DisplayImage.asp?210|/images/ProductPhotos/81160.jpg

Title: Re: Silicone sealant attaching exhaust?
Post by mr. s on 06/18/11 at 16:30:02

Can we get some confirmation as to whether one or both of these products will do the job?
Anyone tried them before?

Title: Re: Silicone sealant attaching exhaust?
Post by EJID on 06/18/11 at 20:43:32

I've had the "Red" on my muffler/header joint for a few weeks now, and only put about 200 miles on it, but when checking for exhaust leaks, none have been found.

Purely based on the description of the "ultra copper" or "red" I would choose the "ultra copper" because it is listed specifically for exhausts. I only picked up the "red" because that is all that the auto parts store that I visited had in stock.

Title: Re: Silicone sealant attaching exhaust?
Post by mr. s on 06/19/11 at 00:56:24

I picked up the copper and got it all finished up. Thanks everyone for the info! :)

Title: Re: Silicone sealant attaching exhaust?
Post by Tiefighterpilot on 06/19/11 at 22:42:46

Silicon stuff did not work on my bcb. I ended up getting the Suzuki exhaust gasket pipe thing that seals the manufacture exhaust to the header pipe. I needed to use a rubber mallet to pound the bcb pipe in place. The fit is tight and provide perfect seal.

Title: Re: Silicone sealant attaching exhaust?
Post by babyhog on 06/28/11 at 15:13:42

Keep forgetting to stop and get some of that stuff, but found this in the garage from a prior project car. Anybody see any problem with a wrap of it? Its a 2" wide bandage. Looks like it would wrap nicely over the joint. I just have a small leak....

http://www.permatex.com/products/Automotive/specialized_maintenance_repair/exhaust_system_maintenance_repair/Permatex_Muffler_Tailpipe_Bandage.htm
http://www.permatex.com/images/DisplayImage.asp?210|/images/ProductPhotos/80331.jpg

Title: Re: Silicone sealant attaching exhaust?
Post by SoE on 06/28/11 at 19:13:01

Ultra copper seemed to work well on mine.

Title: Re: Silicone sealant attaching exhaust?
Post by Max_Morley on 06/28/11 at 20:12:23

The actually make an exhaust sealer, comes in a tube like RTV but made for exhaust sliding joints. Have to let it sit and cure before starting or it may blow out. I've had a tube for years. May have to have the parts store order it now. Max