On Mon, 18 Feb 2002, Vintage Computer Festival wrote:
  Just wanted to let everyone know that 3M Super
Strength Adhevise is
 absolutely THE WORST adhesive to use on plastics.  I bought it
 specifically for gluing borken plastic pieces as it is advertised as
 being for such, but all it has done in the two projects I've used it
 with is make a big mess and ruin everything.
 All it does is melts the plastic, causing the broken edges to no
 longer fit snugly, and then it gets all over your fingers when you're
 trying to press the parts together, which they don't do.  It either
 doesn't make a good bond and requires regluing which then builds up
 glue along the edge ruining the fit, or adheres but the end result
 looks shitty. 
I'd suggest using a Methylene Chloride based solvent. I bought some awhile
back and just started using it. I think it cost me about $3 for a 2fl. oz
bottle. I'm sure I could get it at a better price if I shopped around. So
far, it has been the only thing I've found that will bond ABS plastics.
One thing about these type of solvents though, is a little goes a long
way. Nearly all "plastic glues" or solvents melt the plastics together. If
you apply too much or too little, the end result isn't very pretty.
-Toth