Even IF you get the spray to be fire retardant - there's no point in trying to make a white wall black if it wasn't made to look like that in an interior. IOW - the Hyper will take a major performance hit. The paint will clog up in the tightly spaced area of the cooler and kill the fantastic temps thas made the cooler so popular.
If you want black - get the Xigmatek Dark Knight II, Megahelms dark shadow, Corsair A(something)that comes in black.
@ amuffin -
, now now there! we all needs some loving time with the rig
+1 to it being a horrible idea.