Bob Ivey
TVWBB Emerald Member
I agree with Randall, the gasket material from bbqhaskets.com is the way to go. I have had it on my WSM for 2 or 3 years and it is still going strong. It is not very thick and it just works. It is made of nomex. Be aware, you will never stall every leak. It is just not possible and to be honest, that is not a big deal. The biggest leak of all is the top vent and you want that. It allows the smoke to roll over the meat and not saturate it. To much smoke is NOT a good thing. All things in moderation. Good Luck.
I used the gasket set from www.bbqgaskets.com for my 18.5" and it seals everything great! I believe it's a Nomex gasket. You can check it out and compare.