[Hm9310]

I have used Bleach, mould remover. Antibacterial, all sorts of chemicals. They disappear for a few moments but then come back? It never grows or changes, and it's only on the dark blue in one place. Any ideas??

 

[mark sr]

what kind of paint, where is it?

 

[stick\shift]

Yeah, you provided very little of the information needed to assess this situation.