I use fiberglass "rope" used to seal the doors of high efficiency wood burning stoves. I get mine from a hardware store that sells the stoves and you get it by the foot. it is a heavy braid and 1 foot will do a dozen of Alcohol stoves if it is unbraided first. I then use 24 hour JB weld to hold it in place...works great and much better then when I put the primer under the stove. When you put the fiberglass rope on make sure you put it as low as possible for the fastest prime.
Here is an example and can be bought by the foot locally in most places.