Why would you want wax on them? Not asking to be rude, but cant see why a plastic ramp needs wax. Sure you gotta clean them, Mr Sheen would do that ok, and guess its a mild wax.
 

Exactly that, I don't know but then I've read stuff on sites that I would never of thought of doing and now its a matter of course. BTW I always used MR Sheen on PF's but then got told no go. SO I'm always questioning things and trying to work out what's best for me and my machines.

Reason for the question though was waxing protects the PF and speeds the action up and I notice ball trails on the ramps and figure maybe the same applies. Dunno

Appreciate your comment thanks