Cleaners and waxes to use, and ones to avoid
Novus #2 cleans the playfield and rubber, Novus #3 polishes metal, and a paste or carnauba wax protects the playfield. Keep Wildcat products and CP-100 off the game: they attack plastic, yellowing ramps and lifting mylar.
Systems
Source: Repairing Bally 6803 Pinball Games from 1985 to 1989, Clay Harrell (pinrepair.com)