This is a synthetic surgical glue based on cyanoacrylate with the addition of a monomer. It is biodegradable and impermeable to liquids. It seems to be more predictable and easier to use than hystoacryl (monomeric n-butyl-2-cyanoacrylate) with less likelyhood of catheter fixation....

N-butyl cyanoacrylate (NBCA) can be used as a liquid embolic agent when mixed with Lipiodol to make it radio opaque. The ratio affects the polymerisation time. The more lipiodol then the slower the time to solidify and the deeper the vascular penetration generally.  

Magic glue form Balt is a new variation of cyanoacrylate adhesive liquid embolic agent. It is said to have delayed polymerisation with less adhesion to the microcatheter making it easier to use than conventional cyanoacrylate. It wll be interesting to see how it compares with Glubran?

Onyx is a non adhesive liquid embolic agent. It is made of EVOH (ethylene vinyl alcohol) copolymer and DMSO ( dimethyl sulphoxid) in which it is dissolved. This is suspended in tantalum powder to make it radio opaque. This is why it must be placed on a mixer prior to use to enable good mixing...

PHIL™ (precipitating hydrophobic injectable liquid) from MicroVention Terumo is a direct competitor to ONYX liquide embolic agent from Covidien. It uses iodine based contrast bonded to the polymer to make it radio opaque rather than the Tantalum used in Onyx. It is available in three...