I have never really been a big fan of chrome and especially wheels. I have always love the styled steel wheels for the '68 and '69 Mustangs and I wanted to get a big set for my rear that I could put some drag radials on. The problem is, Wheel Vintiques only has them in chrome and not argent and if I wanted them in plain steel so that I could powdercoat them the color I wanted, they would have to be special ordered. The problem w/ powdercoating chrome is getting it scuffed up enough for the powder to stick. I used 60 grit sandpaper and scuffed them until they had somewhat of a dull finish. But I will tell you, chrome is awfully hard to get to dull up when you want it to. I also used cartridge rolls to get into the tight spaces I couldn't reach with regular sandpaper. As for sandblasting w/ coarse Black Beauty, it really doesn't do anything. Once I had the wheels good and scuffed, I hooked up the ground from my powdercoat gun and applied a nice even coat of argent powder.
Then I carefully put it into my electric oven and baked it at about 400 degrees F until the powder flowed out and gave it that nice argent gleam. The thing about argent powder is that it needs a coat of clear on top to keep it from oxidizing and to protect it. So after the first coat cools, I applied a coat of clear powder which goes on white.
The only thing about clear powders that you have to be careful of is to watch the temperature. I try and keep it to about 375 degrees F and not to let it sit in the oven longer than the time it takes for the powder to flow out. This is because the clears tend to yellow and burn if heated too much. You also have to be careful not to put too thick a coat of powder on or it will end up cracking on you. It is also a good idea to let the piece slowly cool down to also prevent cracking of the clear.
The final product turned out great and I have had these wheels on my car for about 4 or 5 years with no chipping of the powder. I guess that I scuffed the chrome good enough that the powder adhered to the wheel and is super tough and much better than any paint that I have ever used. Like I said, clears are a little difficult to work w/ but the finished look is so much better than chrome in my opinion. It's also cool because everywhere I go people ask me where in the hell I got a set of 15x8 argent styled steel wheels because people have only ever seen them in chrome before. -Mike
