IN my opinion a wall is way too big to crackle effectivly
crackleing is good for small arears or items, even says so so in instructruions on can
you have to faux a crackle for large area not use crackle stuff in can, you wont be happy
it has to do with keeping a wet edge as this craclke top coat has to be brushed on and the area of wet edge will quickly bercome too large to keep the crackleing going in uniform crackleing as the crackle start cracking in one minute where it takes a 3 hours to paint wall with brush.,
take it from me, or even better practice on a scrap drywall sheet, full size, youll see it wont look nice at all. in fact it will look like a amature mess