Actually the hotmelt glue worked fine. It seals the stem to the bowl, but on the outside. The bowl doesn't get hot enough to even soften it, but that might be because of our Canadian weather. Either way, I smoked it dry (without anything in the bowl) several times. No coughing, no smoke, no weird taste or smell or seizures. It could be because the water in the bong is catching all of that, I dont know, but it works great!
moeburn Reviewed by moeburn on . Is hot melt glue a safe sealant? I'm making a bong, but my stem is just a tiny bit too small for my bowl. Can I use hot melt glue to seal them together, or will I end up smoking the glue? Is there any thing else I can use? Rating: 5