craftgrrl | glue used for Judith Leiber bags

Hi,

Does anyone know what kind of glue they use for Judith Leiber bags? I've been crystalizing my phone. In the past I have tried many glues--super glue and krazy glue (these cause the crystals to look dull and lifeless), regular glue (which is pretty much pointless), and E 6000. the E 6000 is my favourite, but it can get clumpy in some spots causing a very unattractive effect (I'll post pics to demonstrate what I mean when I get home from work). Does anyone here have any idea what kind of glue they use to get such a smooth/flat and even effect that also is lasting?

thanks, *^_^*