Iron oxidisation?

[Rob37095]

When washing 133 I notice along the channels in the roof and at the painted edges of rear windows there are some tiny rust spots in the paint (pin head size)

When I rub my finger nail over them they appear to go, would this be iron oxidisation?

If so once I have clayed and waxed car will they come back? Hopefully not.
Not having much luck with body work so far!

 

[singlespeed]

Iron fillings which have landed on your paint and then oxidised. Have a look for iron-X which will disolve the metal. Claying may leave a bit of the metal particle stuck in the paint which could re-rust in the future.