I watched the guy who formulated duralumin through out his whole process on the Iron Man builders forum about a year ago. It was a real treat. Just a guy who wanted something awsome and made it in his garage and started his own company. It was so cool to watch it build from the ground up and there is a record on the Facebook page of all of his posts and trails and errors. Really cool. I'm glad to see his product over here too.
I have printed all of my Djin armor and have been wondering what I'm gonna paint it with as alumaluster is stupid expensive if you aren't batch painting helmets and armor to sell. I forgot about duralumen and now I think I know what I will use!