I don't know how many others out there are toiling with liquid emulsion,
but I am having a terrible time with air bubbles. I am mindful of all the
usual advice -- pour the emulsion like one pours beer, never shake the
bottle, don't brush too vigorously, etc -- but I continue to be plagued with
bubbles. I have ordered the Richeson brush -- thank you Mark for
explaining why it is so magical -- and maybe that will help, but right now I am
feeling extremely frustrated. I have tried squashing the bubbles with a
brush or with a glass rod coated with emulsion, and both seem to flaw the
coating in one way or other. I have consulted the Silver Emulsion bible
(by Martin Reed) and experimented with adding a few drops of glycerin and also
alcohol (Everclear) but neither seems to make much difference.