Hi all - need your opinions on when to apply RenWax. I just got some and seem to procrastinate on when to apply. I had found a civil war token and a exempt WWI button/token (still not sure) that I would like to preserve. Both of these items have some dirt on them, mostly crusty stuff that I likely could remove, but it wouldn't show the detail as well.

Is it ok to apply the wax over the crusty dirt and it would be preserved?

Thanks all! Happy Hunting to all of you.