Thanks all for the replies. Unfortunately my local hobby shop doesn't carry Alclad anymore. Guess I'm stuck with Gaianotes Silver.
I'm building a Tamiya car kit, and I want the grille and bumper to shine. I've googled around and it seems that most people recommend an enamel glossy black coat, followed by the metal paint. I currently airbrush with acrylics only(Gunze Aqueous and Vallejo), do I need to buy an enamel gloss black or could I just use acrylic gloss black? The Gaianotes silver is a lacquer based paint.
If I buy an enamel gloss black, do I need to buy separate thinner as well? Can I use isopropyl alcohol as thinner?