Dude... its called resin. Hahaha. I would use bong cleaner preferably 420 Bong Cleaner. Or you can just use alcohol.
peace out.
Ms. Floyd Reviewed by Ms. Floyd on . Layer of black goo on bong.. Hey, I have A glass bong and where theres water and near the top it's clean but just above the water level theres A layer of black tar, how can I get it off? my bong doesnt come apart thanks a liot!:stoned: Rating: 5