Paint Prep Question

Curb Appeal Pros

New member
Hey guys,

We cleaned a local commercial property in order to prep it for paint. Removal of dirt, bird poop, algae, etc. There was stucco to be cleaned and these metal domes on top to be cleaned to be painted as well. The domes were previously painted with, what looks like, cheap paint as you can tell that over time it was running and streaking the stucco below. So we get on the roof to clean the dome from above and notice that the paint is chalky and can be removed with the wipe of a finger. So I figured we'd ask the experts here first.

So this is more of a "have you ever run into this" question and any recommendations for how to clean it without having to strip it all the way down? The painter just wants it not to be chalky as the paint company itself won't warranty the paint if it was applied on a chalky surface. He knows we didn't do this, but was asking if we had any recommendations on how to clean it.

Any recommendations or advise would truly be appreciated.

It's the pinkish dome to the right of the pic.

https://www.google.com/url?sa=i&rct...rPybrC7CZ3h-lhua9wJ9T69Q&ust=1475679914722023

Thanks!
 

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