I have a piece of metal that is sort of a chrome colour but I want it flat black.

How do I go about powdercoating?

you have to get a powder coating kit, they sell them on the internet and probably in hardware stores. it comes with a gun and a thing that puts an electrical charge on the piece of metal so the powder sticks to it. then you have to bake it. you can do this in a conventional oven, but i wouldn't recommend doing this in the one in your kitchen because there are probably some nasty gases that result from the process.

I have a piece of metal that is sort of a chrome colour but I want it flat black.

How do I go about powdercoating?

Powder coating requires a lot of prep time and good skills to get a good result. If It was me I'd fork out and have it done by a professional powercoater.

It's not that hard, I used to do it as a side project. The hardest part is the prep. Need very clean, preferably glass bead (sand)blasted, and a even coat of powder.

There are a lot of good resources on the web on the "how-to" part, but I'll second StayGold1337 about the ovens. This is essentially melting plastic/polyester, and some noxious fumes result.

I used Pendry powders exclusively, they've also got a lot of tools.

Hi.

For a rough DIY job You just:

1.Get some paint powder from a powdercoater.
2.Copy the curing times and temperatures from the box.
3.Clean the part.
4.Put the part into the oven, to a slightly lower temperature than the curing temp.
5.After about 15 min or so when the surface temperature is near to the set temp, take the part out from the oven and dust, sprinkle, throw, whatever You prefer, the powder to the surface of the part or roll the part in the powder.
6.Cure the plastic in the curing temperature.
7.If the paint thickness isn't satisfactory, repeat 5&6.

Do test the procedure before painting Your piece with a scrap piece of some kind.

It is really quite easy, but takes some practice to get an even surface and/or gloss.

While the curing can be performed in a conventional oven the results range from slight smell and taste in food to a loooong lockjaw & crosslegs and one hell of an argument ;). (They do know what works.)

For a pro job, take it to a pro. Really.

Just my 0.02€
Sam

Find a local motorcycle custom shop. They do this kind of stuff (or farm it out to be done) all the time. You could probably have it thrown in with a batch of Harley parts for not very much money.

Google WAI powder coat gun, its the same one that sells under the craftman name,( for the purpose of discloser I work for the company) for curing small parts a toster oven works fine. Its fairly easy. IMO