Klrman,

i can tell you powder coating is the cats meow for finishing aluminum. It’s heavily scratch resistant (hard knocks with wrenches won’t leave a mark!) chemical and high temperature proof. Used it for years on high performance car parts. Much more cost effective than anodizing.

check out www.skylumen.com and see their Gallery of Cerakote finishes. There’s a blue slash purple tintshift monster BLF GT there that will blow you away...

Cheers!