There are a number of parts on my car that I want to finish with matt paint - both metal and plastic.

Im after some advice if anybody has any as to the best way to do this so that the paint is hard wearing. I have finished one mirror and plate, having simply used wire wool beforehand and spraying - no primer. It has lasted well enough (4months) and still looks good.

I painted the b pillar cover again without primer but this scratches very easily. I have prepared another using etch primer - will this help?

I have seen a Harley recently which was painted in matt purple and matt black and it looked fantastic.

Is there a secret to painting/maintaining matt paint? Perhaps Carl can shed some light? I want it to be hard wearing so it doesnt scratch too easily.

Any advice or know how would be appreciated.

Thanks.