Originally posted by wagz182ksu
thanks for the tips guys, i guess my question would be this. i know people do it all the time, but is it neccesary to use the oven/heatgun to get rid of the old sealent completely? or is it ok just make sure that that a put a nice thick seal on top of that all around the edges, because for the most part the seal is ok, but obviously there are some gaps that need taken care of. So Sealant on top of sealant ok? 
thanks
Probably, but if it does start to fog again, then you're gonna end up doing the oven trick and have to remove twice as much sealant than before. So just to be completely sure and you only have to do it once, just remove the old sealant and put the new sealant in yourself.