ABS Solvent cement, normally used for plumbing to fix plastic pipes.
tumbleweed
January 2011
I think Araldite (spelt phoneticly) should do the trick. It is availble in most old-style hardware shops. They may have a better suggestion. Just don't use poly cement (for Airfix models) they seem to have watered it down in the least couple of years.
Mr_Fusty
January 2008
I can answer this question...
which glue will stick Lego together permenantly please?