For you guys that get really deep or anybody for that matter, we got turned on to this stuff at work for our aircraft, that were having problems with moisture in cannon plugs and other areas that would get wet and cause havoc with certain systems. After we started using it all the problems went away, it was quite amazing. It is called "cor-ban", maybe some of you knew of this stuff already. It comes in a spray or in a gel. If there is any interest, I will post their address or some way for you to get some and no I did not buy a bunch of their stock, or have and affiliation with them, but if it works and you want to send a case of brew this way I won't tell the Mrs. Thx, Ron