Avoid cleaners that attack the playfield coating and ramps
Use a plastic cleaner such as Novus 2 for the playfield and rubber, Novus 3 for metal polishing, and a hard paste or carnauba wax for waxing. Do not use Wildcat products: they react with the acrylic plastics and coatings on playfields and ramps.
Systems
Related tips
- Left ramp hard to make: clean and wax the ramp as well as the playfield
- Cleaning and waxing a WPC playfield
Source: Repairing Williams/Bally WPC Pinball Games from 1990 to 1999, Part One, Clay Harrell (pinrepair.com)