A while back before they laid me off my job built a big baby double barrel over/under smoker for me to use. The other day (2 years later) their moving out of the building and lo and behold one of my former work friends got the boss to give it to him and he gave it to me. I tell ya I coulda cried. Anyway... On this particular build the two updrafts are spaced towards the outside edges of the barrel's with the exhaust dead center. The two up drafts are, well drafty. theres a lot of daylight in there id like to get sealed up. Now had I thought about it while they were building it I would have recommended that they solder those tins together, but alas hindsight is 40-40 I'm wondering what I can use to seal those up a little better that wouldn't involve a sandblaster to get em clean enough to do the job. It hough about some sort of wrap but I need some better ideas. so here I am asking those that know..