PinGuard Rubber Cleaner. Intended for use on Pinball machine rubbers specifically. This rubber cleaner is non-flammable and can be shipped internationally! PinGuard rubber cleaner is very eco-friendly; non-flammable, non-toxic, and 100% plant based. Since this product contains no petroleum products it will not dry out your rubber. This 6 ounce bottle contains enough rubber cleaner to clean hundreds (if not thousands) of rubber rings and parts.