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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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