Yes
My lovely Thorn Sherpa gets ridden in gritted salted roads, and hosed down at least once a week in winter, and any stone chips are sanded back to bare metal and treated in the Spring and Autumn. I will be spraying the inside of the frame with Waxoxl this summer (her third summer) and probably every 2nd or 3rd Summer after that. And I keep the top of the seat-post greased inside.