We have used the One Shot Ink Rollers from Stencilease and have not had any problem with flaking. It seems to adhere very well and comes in several colors. They now have some new playground stencils also. Of course with any paint it will need to be reapplied when it fades. Here is the link below for the ink.
Oneshot® Replacement Neoprene Roller
Re: PLAYGROUND STENCILS
Linear Mode
