Painted wheels....clouding

[Nafoff]

i painted some wheels about 2-3 weeks ago, these were painted as they should have been, ie sanded, primered, sanded, painted, lacquered, etc then left to cure for a week before going on the car, they have now been on the car for a week and they seem to almost be clouding slightly, like a white mist.

anybody got any ideas why and also how i can clean / avoid this?

 

[Gaz_]

nothing to do with heat from brakes etc?