I have Testors plastic cement that has a chemical bond with plastic...hmmmm.
Thats the stuff, If I remember right you have to hold it there alot longer then super glue but it does harden and can be used in layers. check out the link and double click on the picture. Shows the applicators to help with distribution of the glue. I think this simular to what you where talking about over seas Wojtek.
http://www.megahobby.com/cementgluevaluepacktestors.aspx