I don't own a Dynavap yet, I got the Dynawax to use on the o-rings on my Wireless One Hit Wonder ball vape, and it certainly does the trick. Even after heating the bowls, the glass can be a little hard to wiggle out, and they're glass so you have to be careful not to try too hard or it might break. The Dynawax solved the problem nicely. I use it on all the o-rings for all my devices and it helps prolong the life of the rings by stopping them from drying out so fast. I'd recommend the Dynawax to anybody who uses e-rigs or pens on a daily basis that have a few o-rings keeping the glass snug or holding a mouthpiece in place. Ive yet to try it on the Dynavap, but I'm sure it works just as well on one of those also.
