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- - removing paint (http://www.diychatroom.com/f4/removing-paint-122530/)

harebear

11-06-2011 09:11 AM

removing paint

howw do i remove ind. red spray paint off concrete.,outside a storage shed.

jschaben

11-06-2011 10:13 AM

Quote:

Originally Posted by harebear (Post 764877)

howw do i remove ind. red spray paint off concrete.,outside a storage shed.

Problem isn't so much getting the paint off concrete, it's getting it OUT of concrete. Concrete is very porous. If it is pretty well cured, I would probably use a angle grinder with a knotted wire cup brush. Will likely leave some marks in the concrete though.:)

the_wanderer

11-07-2011 06:00 PM

hydrochloric acid, 30% or more should do it

jschaben

11-07-2011 06:09 PM

Quote:

Originally Posted by the_wanderer (Post 766027)

hydrochloric acid, 30% or more should do it

:eek:I bet it would:eek:
Muriatic acid is a 30% concentrate and that's normally cut 10:1 for etching.

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