Plastiweld (1)

An old school builder told me about this and I highly recommend it. Put about 1/2 oz. In a small glass jar, drop in a few small pieces of cut up sprue. Let sit about 24-36 hours ubtil the plastic melts,and you've got some awesome body putty. Doesn't shrink, it's sandable and has same texture as the parts you're joining because it's made of the same plastic. Unused portion will keep for quite a while if you've got it in a jar that seals tight. You can add more cement anytime to thin it too, or plastic to thicken it. Works excellent.