I found you can't mix this product before dipping. Open the can or the jar you have it in and start using it. If you think it needs to be mixed or you just added a little xylene to cut it you'll need to let it sit to give the air bubbles time to dissipate before dipping. Also, you can't let the plugs drip back into the can. Every drip causes bubbles in the mix that the next lure will grab. If the container you have it in is wide enough you can dip the plug on one side and let it drip off on the other. The bubbles will stay in an isolated area for awhile. For me it's easier to just dip and hang. I don't bother letting the product drip back in the can. I tried letting the plugs drip over another container so I could save the product but it really isn't worth it, your hardly left with enough to save.
If you sure your mix is clean and not "aerated" make sure the sealer your using is doing it's job. If a wood plug isn't sealed correctly it will bubble like crazy when it's dipped in this stuff.