Michael, the process is archival. It was once more common, the likes of Strand and Stieglitz were among those that waxed prints (and we know their prints are still around). I did not find the change in D-max to be worth the effort. A coat of gelatin sizing (used for gum-over pt/pd) will do pretty much the same thing. Others have tried coating with albumen - search the threads here and you will find quite a few discussions on the subject.