How would one get rid of spray painted grafitti from a brick building? Pressure clean? A certain product?
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go to a sherwin williams store they have a citrus product.
you may be able to squirt it on and rinse it with a hose,but it would be better to soak it up good then hit it with a 3000psi washer. if that don't do it,it's time for a sandblaster guy to come in.
i'd love to catch one of these kids,get em down on the ground and spray paint there ears,hair,eyelids. let them go home and do a little scrubbing also.i can only dream.
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I would use a chemical and power washer before i would try sand blasting.
I use a product called Elephant Snot with a hot water power washer and it works great.
Sand blasting and soda blasting tends to change the texture of the brick or concrete and you will always see a shadow of the graffiti.
Edited 1/25/2009 11:41 pm ET by RobertLee
Google "Dry Ice Blasting"
Can find a local contractor maybe. It's as harmless to the surface as you can get.
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I did some web searching a while ago and found that a poultice of diatomaceous earth and paint remover is supposed to work best. It soaks in and dissolves the paint, then absorbs into the d.e., similar to an oil stain lifter.