409 will take the wax off, but it cleans.
If you want to clean non skid real good, there is some cheap stuff from Attwood.
Called Attwood Premium non skid deck cleaner. In a dark blue bottle. Got it at
Wallyworld really cheap. Just rinse the deck, squirt on, brush till it foams,
then rinse off after a minute. It is one of the greatest things made for non skid.
It really works well for dried bloody and fish slime decks.