If it's acrylic then, as salato says, superglue.
ETA - if you are able to pin it mechanically - in addition to the superglue - then so much the better.
ETFA - Oh - and don't use accelerator on the superglue. The price you pay for a faster bond, is a weaker bond.
If it's acrylic then, as salato says, superglue.
ETA - if you are able to pin it mechanically - in addition to the superglue - then so much the better.
ETFA - Oh - and don't use accelerator on the superglue. The price you pay for a faster bond, is a weaker bond.