Kotta, the tung oil doesn't smell too much when it's applied. I'd rather do anything like this with windows open, or in the basement away from living quarters. But the smell is mild compared to something like polyurethane varnish.
Usually, the directions tell you to wipe it on, then, say 5-10 minutes later (before the oil begins to dry) wipe off any excess that doesn't soak into the wood fibers. Natural oils that haven't been treated with drying additives may take a little while to dry, but after sitting overnight, the wood should be dry. The oil will continue to cure for a couple of days, hardening in the wood fibers (something that furniture oils and polishes do not do). It will give the walnut a deep lustre with no oily residue.
Usually, the directions tell you to wipe it on, then, say 5-10 minutes later (before the oil begins to dry) wipe off any excess that doesn't soak into the wood fibers. Natural oils that haven't been treated with drying additives may take a little while to dry, but after sitting overnight, the wood should be dry. The oil will continue to cure for a couple of days, hardening in the wood fibers (something that furniture oils and polishes do not do). It will give the walnut a deep lustre with no oily residue.