I love applying paste wax with a PC. :waxing:
I just use a foam hand applicator pad to transfer the wax from the tub to the PC’s pad. But something hard and smooth that doesn’t absorb (waste) any wax would probably be better, maybe a spoon (rub the bottom of the spoon to pick up a wax film, don’t scoop out a glob) or a spatula or putty knife.
pc.