Am not sure how many know, but a product called 'Plexo' in a tall blue and
white spray can will clean a pinball playfield much quicker and considerably
better than 'the old standby' made in Texas! I just shake it, spray it on
in heavily trafficked and wipe off. After doing this, THEN apply that
playfield wax and cleaner that so many of us have used for years. This
stuff seems to bubble the dirt up and off the surface, making it much easier
to remove! It has NEVER hurt the playfield in the least little bit. I have
used this for over 8 years.