Hell all

I am trying to model a set of coils joined together by individualresin moulds. What I am attempting to do is extrude a resin shellaround a copper coil which will eventually bolt together (resinmounds) to form a generator. When I try to extrude material aroundthe coil I can either have a copper extrude (merged) or twoseparate bodies - one copper coil and a body I can not seem toassign a material to - any help much appreciated.

KeithSolidworksParts And Features