Bringing a matte finish to a shiny gloss?

[Tenno]

Well I may have made a small mistake in painting my model. So I put a flat finish on one door, it doesn't look horrible, but i would like the look a lot more if it had a glossy finish. The rest of the model has not yet received a finish coat.

So what steps should I take to give it that nice shiny gloss?
Should I worry about the matte paint affecting the the look of the metal paint underneath?

I suspect I could wet sand the matte then paint the gloss on top. Does anyone see anything wrong with this?

[imthatguy]

Nah, I've gone from flat to matte to semi to gloss and back again with no troubles.

[delux]

What he said! You shouldn't have any issues at all.

[mrmat01]

Even a gloss clear coat would work.
But for best results wet sand with 1000 or 1200 grit and paint it with gloss.
Hope it helps