>>9403890What tab? Depending on how small it is and how tight a connection it is, your best bet is going to be Plastiweld. It melts plastics together where applied so it's stronger than having a glue connect the parts. Just be aware that it can be very damaging to plastics if you spill it on the wrong part. Definitely check out some youtbe vids on application and try it out on a dollar store toy before trying it on your super expensive japanese import.
