Re: Spraying clear coat onto bare metal
what you can do to make cool designs/effects on the metal is finish it so it's shiny (no scratches) and smooth. tape off a section, or possibly even use like some 1/4" hard board, to make a design/pattern...then use a wire wheel (that's why the hard board over tape) and go in one direction. you should get a sort of "grain" in your taped off area(s). you can you different directions and grades of wheel to achieve different patterns/effects.
honestly, for the top of the desk, i would use like an epoxy varnish....will stand up to a lot more abuse and also give that thick laquor look.
2006 Jeep Liberty
Adire Audio, Cadence, Clarion, MB Quart
Lv = [(14630000 x R^2) / (Fb^2 x Vb)] - 1.463R
*Vb = vol. in cu"
**R = sq.rt. A / Pi (for square/slot port)