Silicone

Discussion in 'Propane Smokers' started by daddycreswell, Jul 5, 2012.

  1. daddycreswell

    daddycreswell Fire Starter

    Like many I am losing smoke from the door on my master forge. I went to both home depot and lowes today to get a oven seal kit, but they don't keep them in stock. So I found 3M fire block sealant, can I use this to put around the doors? Thanks[​IMG]
     
  2. mossymo

    mossymo Master of the Pit OTBS Member SMF Premier Member

    I'm not familiar with that product and not sure if it would put a dangerous residue to the products you are smoking.

    Here is the product I purchase, Rutland's High Heat Sealant. For door gaps it works well to lay a bead of the sealant and then lay Saran Wrap over the sealant and close the door overnight to dry. This will form a perfect gasket to where the the gap was... In the morning simply remove the Saran Wrap and start smoking!

    [​IMG]
     
     
  3. If the tube doesn't say something about being rated to a temp of 500 degrees or something like that, I would just go get a tube from an auto supply store.  I got clear silicone for mine because I didn't want to have to look at a red or black bead even though they are rated at a higher temp.  I noticed the red and black stuff says it works up to 600 degrees.  If my smoker gets to 600 degrees, something has gone terribly wrong.  The clear is good to 500 degrees.
     
  4. Never seen that. I use this.

    [​IMG]
     
  5. cabrego

    cabrego Smoke Blower

    Is everyone comfortable using the auto gaket materials in their smokers? 
     
  6. daddycreswell

    daddycreswell Fire Starter

    This what I have found about it, I have already bought it so I guess I'll try it.

    A 1 component, noncombustible draft, smoke, and fire blocking sealant, designed to resist high temperatures and smoke passage in nonrated residential construction. It is used to seal interior construction voids around wires, pipes, HAC ducts and vents, in wood or steel framed nonrated construction. May also be used around chimney, fireplace, and other framing gaps. Meets ASTM E136 current 2003 International Building Code (IBC), 2003 International Residential Code (IRC), 2003 International Residential Mechanical Code, 2003 International Fuel Gas Code, and NFPA 5000 smoke and fireblocking requirements. Water based product, should not be exposed to water. Gray in color. 10.1 fl. oz. cartridge. Service temperature 1380 F. (750 C).
     
    Last edited: Jul 5, 2012
  7. sqwib

    sqwib Smoking Guru OTBS Member

    Last edited: Jul 5, 2012
  8. mossymo

    mossymo Master of the Pit OTBS Member SMF Premier Member

    The Rutland product I posted and have been using for 10 plus years dries to a flexible, rubbery feel to it.
     
     
  9. sqwib

    sqwib Smoking Guru OTBS Member

    Yeas the Rutland Silicone will.

    I just want to make sure folks don't get the Stove and Gasket cement.

    A lot of guys see the Rutland name and just grab it not realizing there are different types.

    Glad you pointed that out I should have been more specific in my post.

    The Stove and Gasket will work inside a fire box, withstands 2,000° I have used this.

    Rutlands RTV Silicone withstands 500° Mossymo has had success with this product

    Permatex withstands 650° I have used this to hold glass rope on my firebox door and to seal my smoke chamber.
     
  10. piaconis

    piaconis Smoking Fanatic OTBS Member

    The FB 136 fire block sealant won't flex.  I have the same stuff, and I only use it to seal holes in my firebox where the stamped sheet metal left a gap.  Use the Rutland RTV.
     
    Last edited: Jul 6, 2012
  11. daddycreswell

    daddycreswell Fire Starter

    Well I took the stuff back to Home depot, I ordered a fireplace door gasket from lowes, so it will be in Tuesday. I had to pay an extra 10.00 for 2 day shipping because I need it this coming weekend and no one around me carried it. Oh well, at least I'll have it. Thanks guys for stopping me before I tried using the other stuff.
     
  12. expat smoker

    expat smoker Smoke Blower

    Just thought I'd revive this old thread to mention that I've found a NEW higher temp RTV silicone.......for a few cents more, i found RTV rated at 750f.  Seems that the general consensus is that there is no problem with using Silicone RTV.

    just wondering if there is any high temp epoxy that is recomended for smokers?? or any high temp cement based fillers??
     
  13. daveomak

    daveomak Smoking Guru OTBS Member SMF Premier Member

    http://www.rutland.com/productinfo/black-furnace-cement.html

    Check this out..... I have used it.... Good stuff.....  Dave
     
  14. bigsky109

    bigsky109 Fire Starter

    I just used a fireplace 3/8 rope gasket and the fireplace adhesive to get it to stick the the door.  Was really easy and didn't leave a mess.
     
  15. cpfitness

    cpfitness Fire Starter

    Reviving this thread.

    Also just bought some of this stuff from Home Depot because they didn't have the red RTV.  I am going to go get some of that tomorrow at a local auto parts store but based on reading a couple of comments here, do you guys think this stuff will work to seal a fairly large gap in the firebox on a Brinkman Trailmaster Limited Edition?  You put the 2 halves of the smokebox together and there is easily as much as a 1/4 gap so I need to fill it with something that will really take up the space well.  I'm thinking it won't matter much if it doesn't flex because it's not a door that is opening and closing, I'm sort of trying to weld the gap shut.
     
  16. pahunter53

    pahunter53 Newbie

    Just go buy the red permatex chalk in the auto section, clean the surface of the door real well and lay a good bead od chalk down, on the door cover the area with saran wrap then close the door and let it cure for a day or two  then open dor and remove the saran wrap.
     
  17. cpfitness

    cpfitness Fire Starter

    Actually, I went ahead and gave the 3m stuff a go.  the white papers on it specifically cite repairing cracked fire bricks and wood stoves as a use for it and it's supposed to be good up to 750 degrees CELSIUS so should be great for the firebox.  I won't be surprised if it doesn't do well for sealing the doors but we will find out!  someone has to be the guinea pig!!!!
     
  18. The fire block stuff is usually a latex style , stay away from products that say chalk or cement, they won't make a very nice seal.

    The red permatex high heat sealant works very well, The stuff I got from advance auto says 1000 degrees right on the tube and even states that it can be used for oven gasket, non toxic. Only problem is it's red. The Rutland silicon sealant didn't work to bad for me, even though it's only good to around 550 or so, it looks much better being black.

    I made the same mistake Sqwib mentioned picking up a tube of Rutland one time and spend the next day scrapping the stuff back off. It looks exactly like the first tube I bought, but was latex instead of silicon, what a mess.
     

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