Maybe im completely wrong but... I received this and after the first tank there was some condensation on the bottom of the rta. I used some blue loctite and it is so minimal now I wouldnt consider it abnormal. Meaning that most of my rdas leave way more moisture and havent ever seen anyone complain about those rebuildables. I am thinking since the afc screws weren't in direct contact with my juice I would be fine. I waited about an hour for it to dry and it seems to work for me guys. Good luck. Flavor is good vapor production is outstanding for a tank. Dual 24 gauage .4 build with Japanese cotton.