[stevenoble]

This is one of the problems with metallic paints.They are so awkward sometimes and you can end up with a lighter colour on the repaired area or sometimes a dark edge to the repair.I used to work in a body repair shop and the way we used to spot repair with metallics was as follows sometimes works,sometimes doesn't but it may be worth a try.

1: Repair the problem area by sanding,filling whatever you need to correct it.

2: Primer the repaired area.Try to keep it very local.Allow to dry.Then very gently wet flat the primer with fine wet and dry.

3: Apply your metallic colour coat.Go just past the primer repaired area.Usually 3 coats of colour.

4: After the last coat of colour and before it fully dries and I'm assuming you are using an airbrush? Put a very small quantity of your colour into the airbrush and add to it about 3 times the amount of thinners.This will create a very thin almost 60-70% thinner mix but still with some colour in it.

5: Now very lightly dust the thinner mix across the edges of the repair between the old coat of paint and the new repaired area.This will blend the repaired area into the old paint and should hide the join of the 2 layers.It may take a couple of applications of the thinner mix,but go steady,be patient and slow.Too much thinner mix too fast will melt the paint edges instead of blending them.

6: Once happy with the blending and it has dried sufficiently apply your clear coat as usual going slightly past the edge of the repair and blending as before adding extra thinner to the clear coat mix or alternatively clear the whole part again,no blending of the clear required.

7: Once dry polish as normal to a nice finish!!!

Hope this helps.Takes a couple of practices to get it right but it usually does work.