Polishes and waxes for playfield, rubber and metal
Novus 2 is suggested for cleaning the playfield and rubber and Novus 3 for shining metal, and a paste wax or hard carnauba car wax for waxing the playfield.
Systems
Source: Repairing Gottlieb System 3 Electronic Pinball Games from 1989 to 1996, Clay Harrell (pinrepair.com)