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Gasket Help

 
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4LittlePigs
BBQ Pro


Joined: 16 Oct 2008
Posts: 601
Location: Central Kentucky

PostPosted: Fri Nov 12 10 3:46 am    Post subject: Gasket Help Reply with quote

Need some help from some of you guys that build and generally tinker more than I do with smokers. My smoker doors are not exactly tight when they are closed and I get some smoke and heat escaping from around the edges. I used my angle grinder with a wire wheel and went down to the metal and used some stove adhesive and stove door gasket material. It worked perfectly and I was very happy. Now however, after only 2 months the gaskets are falling off! Crying or Very sad Any suggestions?
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patruns
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Joined: 03 Mar 2010
Posts: 3193
Location: Long Island, New York

PostPosted: Fri Nov 12 10 4:16 am    Post subject: Reply with quote

After you wire brushed down to the metal, did you seal the metal with a high temp paint? I'm thinking perhaps some rust caused the adhesive to fail......
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pyronoel
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Joined: 29 Jan 2010
Posts: 528
Location: St. Charles-ish MO

PostPosted: Fri Nov 12 10 4:49 am    Post subject: Reply with quote

I'm on my 2nd install of fiberglass rope with high temp cement. I attributed the first failure to the metal not being clean... this time, after sandblasting, cleaning with alcohol, and then re-applying- we shall see. 2 weeks into it, it's holding great though Smile

so I may not have an answer, but at least your not the only one in the boat Smile
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pyronoel
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Joined: 29 Jan 2010
Posts: 528
Location: St. Charles-ish MO

PostPosted: Sat Jan 01 11 5:15 am    Post subject: Reply with quote

My rope fell off again today! ARG

I had that metal as clean and oil free as it could be.
What's the secret ??
I've been using the gasket sement. What else have y'all used?

Note: My smoker sees rain

Smoker rope has never seen over 350*, rope on the firebox is 50% falling off as well. -and it was perfectly clean as well during installation.
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k.a.m.
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Joined: 12 Dec 2007
Posts: 26012
Location: Southeast Texas.

PostPosted: Sat Jan 01 11 8:33 pm    Post subject: Reply with quote

4LittlePigs, if you want to use the gasket material I suggest using high temp silicone in place of the stove gasket cement. Get the area clean and apply the silicone and gasket. That should do the trick.
If your gaps are not very large you can clean the door flanges really good and apply some black high temp silicone to them, what you do next is apply a thin coat of grease to the cooker body where the flanges touch, then ease the doors down. This will allow the silicone to flatten out but not stick to the cooker body. When the door is dry just scrape off any excess. I hope this helps. Smile
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Tony
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Joined: 06 Feb 2005
Posts: 3482
Location: Rehoboth Beach ,Delaware

PostPosted: Sat Jan 01 11 8:56 pm    Post subject: Reply with quote

X 2...

High Temp RTV Silicone...Red Stuff is 'da Bomb! Wink

Best Regards,

Tony Very Happy
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hvac81
BBQ Pro


Joined: 12 Sep 2005
Posts: 590
Location: Fort Mill SC

PostPosted: Sat Jan 01 11 9:03 pm    Post subject: Reply with quote

X3- I use the Red stuff regularly...


Before the Nay sayers say Nay- I dont care Laughing
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Tony
BBQ Super Pro


Joined: 06 Feb 2005
Posts: 3482
Location: Rehoboth Beach ,Delaware

PostPosted: Sat Jan 01 11 9:28 pm    Post subject: Reply with quote

hvac81 wrote:
X3- I use the Red stuff regularly...


Before the Nay sayers say Nay- I dont care Laughing



Amen, Brother!!! Cool

Good Morning and Happy New Year, Dennis and Kevin! Wink

Best Regards,

Tony Very Happy
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day_trippr
BBQ Super Pro


Joined: 08 May 2009
Posts: 3206
Location: Stow, MA

PostPosted: Sat Jan 01 11 10:28 pm    Post subject: Reply with quote

I'm pretty sure furnace cement is moisture-adverse. I used it for almost two years for the lid gasket on my humble cooker, but it required taking the paint down to bare metal to have even a chance of lasting for more than a cook or two, which I attribute to all the humidity produced during a smoke.

Even cementing to bare metal it would only last for a few months or so, then I'd have to remove the crumbly bits and re-cement the gasket. Not that big a deal given the diminutive size of my wee vertical, but I kept thinking there had to be something that would work better.

After receiving a few PMs over the Spring from folks that had done the FrankennBrinkmann mods but using RTV, I finally switched to the red goop this summer...

...and it's still holding fast.

Cheers!
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evil16v
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Joined: 25 Sep 2009
Posts: 154
Location: Kansas

PostPosted: Sat Jan 01 11 11:50 pm    Post subject: Reply with quote

X5 here on the silicone. the gasket cement fell off my old smoker too.

On this one,I was so close on my doors, that I actually didn't even use gasket material. I just cleaned the p!$$ out of the "door wells", ran a Nice FAT, even Bead of black high temp silicon, sprayed the doors with Pam and shut them. I came back later to a perfect gasket.
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Rob
115 Gal. Reverse Flow Build, water heater fire box, forced induction/ PID controller
Kory's 305 Gal. build
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Joe Swanson
Newbie


Joined: 10 Nov 2010
Posts: 84
Location: Minnesota/East Texas

PostPosted: Sun Jan 02 11 12:30 am    Post subject: Reply with quote

i know the gasket cement i used on my pit said it had to be heated to 500 and held there for awhile to cure.
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