Hi List, I'm looking for a good article on the different insulation types (PVC, PU,= =20 Teflon, PE, rubber, etc), their properties, typical applications, and=20 advantages/disadvantages. Can someone suggest a source (paid is OK)? Thank you in advance, Vitaliy=20 --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .