Rustolium: So I spent the better part of my day trying to scavenge for the rustolium Royal Blue at the stores I've been used to buying them at. Well, needless to say, every store I went to did NOT carry it in the spray form, only the can/brushable kind. I went to both lowes, home depot, ACE, and two walmarts. With the exception of buying it online, I feel that what you do find online is what's left in stock for these business and perhaps the last of it. Because of this, I think we need to seek an alternative company's paint to utilize. I have been told that this paint has been discontinued!
Krylon: Krylon Short Cuts Ocean Blue has been a common standard for the mandibles/ helmet's wrap around. While at first, this paint was decent, Krylon decided to FUBAR the formulas, and IMHO, completely ruining the paint. The quality went from great to craptastic almost overnight, it seemed. My last Jango helmet commission took me several months because of this paint not spraying down smooth at all, instead bubbling every time. But did you try more than one can? Yes, I bought multiple cans, 2 of which from separate ACE hardwares and another from an online store. They ALL had this problem, therefore, it is to me, no longer a viable option to use, unless you love to paint and sand, repeat!
So far, the only alternative paint has been the Model Master's French Blue, as used by BKBT, in place for the Krylon Short Cuts Ocean Blue. I personally used this paint this past week, and without any issues...First time use and it went down perfectly. Dried very quickly and accepted a gloss coat as well (same brand though). I know they sell this in both the small jar form and the spray can form. So if you want worry-free paint, go with the model masters!
Alternative for the royal blue? I'll need to search. I did find one can leftover in a prop storage I had. I sprayed it on some pieces, despite my testing of it showing it was still good, the rustolium became spotty, so I'll need to sand and start over. My 2nd issue with the royal blue is it's finicky nature. Having worked so much with it, rustolium in general can be very tricky to work with compared to other paints, so even after all my experience using it, I can't help but hope that it's not going to screw up! No other paint that I saw came close to it's color, since it's almost a greenish-blue hue. Though, i will start doing some color matching to see if I can find an alternative brand...