Don
Darth Camaro 12/27/15
Looks like KVAN74 and Dr_Detail beat me to it. The shop I worked at also did rustproofing. One of the materials we used was paraffin based. It had that "crayon" smell and it would stay with the car a long time...the smell would also 'flare up' it the stuff got hot (engine compartment, hot weather etc)