I posted this in the main forum and it was suggested I try this section:

Anyone ever try and duplicate an aluminum soft plastic injection mold? I've seen plenty of videos on duplicating a soft plastic lure but, not the mold itself. The plastic jigs that im trying to duplicate are too small for duplicating with clay or plaster of paris. I do have an aluminum injection mold that was made for me and I'm not willing to give the company more money for another.

Thanks in advance ....