Instrument panel ?

Not sure about the argent.......true argent has a texture....be sure of what you want.......

Adhesion promoter is a must, but proper prep is gonna make or break the job....On plastic, NEVER use sandpaper unless you're "softening" a scratch or gouge.....You need 000 or 0000 steel wool to smooth out the plastic parts.........it smooths and removes old plastic chrome too without ruining or marring the parts.........

After you clean and steel wool, be sure to wipe it down with some quick drying prep solvent before you mask and paint............then the adhesion promoter, followed by your topcoats........if you have heavily discolored areas after steel wooling, and you want an even color before paint, use a little dove gray primer over the adhesion promoter, and very lightly dull it with 0000 steel wool before your topcoats....and wipe it again with prep-solvent before paint......

...oh, and don't forget to wear some latex or vinyl gloves....it will keep the salt and oil from your hands OFF the parts. 8)