Airborne Glaze Event

This is some footage of the currently exploding Icelandic Volcano, which in addition to lava and rocks, spews a cloud of ash dust. As we all know by now, it is terribly disruptive to travel because of the harm it will do to jet engines. I am not an expert in vulcanology, but it seems to me that a superheated coating of fine ash dust would actually, well, be glazing the engine of the jet. Volcanigama, anyone?