What animal can not get wet?
ocean animals. like fish, squids, crabs, animals that breath water mostly. you know, because if you need to breath water you live in it completly! So are you really wet when you have lived under water all your life? No, they arent.
Because it hasn't had time to mold the first skin but when the mold gets old enough there will only be one layer of skin. And also if it is crawling over another animal that animal will not be wet and soak up the wet stuff on the snake. (only if it has been in water) (Because snakes are NOT wet there stale.