I haven't used it for a long time, in fact my mix is so old it probably won't work any more (could be an interesting experiment to try it), but I recall it wasn't quite the black I expected but oiling it darkened it more and it seemed to "age" a little bit. The fact it wasn't quite like a commercial black dye didn't bother me because it had a unique colour to it. The smell did slowly disappear, just took a little while.