About glues... when glueing styrene together styrene glues actually melts the two pieces together where cyano just sticks them together. There is no actual melting of the two styrene pieces at the glue joint. It was explained on one of those info programs how cyano works. It's much like takeing 2 pieces of glass and putting some water on the glass then putting the other piece of glass on to the other piece they stick together because the water fills the space between the two pieces of glass.