hey! Either I'm becoming a better communicator or you my friend, are learning a few new things and becoming a more informed coater! ( I vote for the latter.... I know for a fact my communication skills havn't changed,lol). Yes, while the phosphate
can indeed be used on aluminum... it's a situation of good/better/best. I won't usually recommend something if there's a better alternative out there or if you have no choice. Here on the site you do have a better alternative and a choice in your options and therefore, I suggested it. After all...... we both know that you only want to powder coat something the 1 time, am I right? In that 1 time deal... you do indeed want the best for your parts and possibly a clients' word of mouth advertising because "this stuff is awesome and I have no complaints", am I right? Small investment for good advertisement, let's say. I suggest phosphate for steel and chromate for aluminum, and that's all I'm gonna say on that one. Your decisions are your own and my knowledge is based upon the mistakes I've made in the past. One may take the risk themselves and learn like I did and gain wisdom from another's errors. That's all I'm saying
..... Russ