Sure, but the way you approach it depends on where you are in the process. If you're lucky, you're not quite finished roughing. In that case, put the thin stuff on and let it wick in. Give it some time, then hit it with the accelerator to make sure it won't fling about when you turn the lathe back on. This is the best practice. When you see it, stop it with CA and if you take off more wood with the gouge, stop and do it again, just in case. Better than blowing out a rim. Do the same as you hollow the inside.
If the outside's sanded and inside not, put some accelerator on the outside of the crack, mask it with tape, and apply to wick from the interior. Stand clear and spin it in, then finish the interior.
If both are sanded, spriz both inside and out with accelerator to limit penetration, then apply and let wick in. Won't use as much, won't penetrate as far, but 220 will even the surface