rustoleum does not work

[sodaworks]

Sounds like you got a bad can of paint.

[SquareTopCollector]

how often does that happen?

[MoonDawg]

Its weird because the rust is forming on the rustoleum but it will wipe right off.

      Rust is on the exterior?

[SquareTopCollector]

yep right on the new coat of paint

[aspbear]

Was the orginal paint a metalic looking black or chrome.  I have see these with a metalic type paint that is very shiny,  if so take a metal brush and clean off the orginal paint or at least all you can get off.  I sounds like you have a paint that is not allowing the rust to attach and rather is just on the surface so when you spray the hammertone it is just becoming a part of the pigment.

I have soda machine in use for 2 or 3 years that I sprayed the inside or racks with hammertone and they still look great.