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Any ideas on how to remove paint chalking from exterior brick ?
Customer has 3 round gable vents and the white paint has bled ,
but they are in the front of the house and there's no inconspicuous
place to test chems. cleaners etc. Powerwashed at 3500 PSI and
it didn't budge . thanks in advance
 

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How about a wire brush?




A wire brush unless it is brass or stainless will turn the brick black.

Try a paint remover from a company called Prosoco.

What you probably have is called chalking,aluminum (if that is what they are) is prone to do that.
 

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Brass will turn the brick "brassy"




I have to admit,I take a wire brush to brick about every 10 th blue moon. With that said,possibly the brick I took the brass brush to were colors that the brass was not noticeable because I cannot recall them turning "brassy"
 

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I've only done it once, and it was on old soft brick. The brass is softer than the brick (which is why i chose to use it) and rubbed off on the brick. When i tried to remove the brassy finish I couldn't get it off, not with a pressure washer (set pretty low), not with any cleaners.

Maybe on a modern harder brick the brass wouldn't "grab" the brick in the same way. I don't know, i just won't try again.
 
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