How to Remove Graffiti from Concrete Dam Walls, Stones, and Boulders Near Streams or Rivers

How to Remove Graffiti from Concrete Dam Walls, Stones, and Boulders Near Streams or Rivers

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A pressure washer/vacuum attachment is ideal for jobs where water reclamation is vitally important. Apply Bare Brick, Stone & Masonry Graffiti Remover by with a brush and agitate before using the pressure washer with the attachment to rinse off. (Note: A wet vacuum and power connection are required for this method.)
How to Remove Graffiti from Concrete Dam Walls, Stones, and Boulders Near Streams or Rivers
How to Remove Graffiti from Concrete Dam Walls, Stones, and Boulders Near Streams or Rivers
How to Remove Graffiti from Concrete Dam Walls, Stones, and Boulders Near Streams or Rivers
Natural Restoration uses the EcoBlaster Portable Pressure Washer for hard-to-reach locations that are often only accessible by kayak.
When this type of equipment is not available, you can protect runoff from entering a waterway by using a tarp and disposing of the water into the dirt to biodegrade. This is essential for removing graffiti from natural environments.
How to Remove Graffiti from Concrete Dam Walls, Stones, and Boulders Near Streams or Rivers
Before
How to Remove Graffiti from Concrete Dam Walls, Stones, and Boulders Near Streams or Rivers
After
Images Courtesy of Natural Restorations
Alternatively, choosing a consistent color, such as ‘river rock grey,’ to paint over the graffiti can be a quick and effective method of disguise in these situations. If more graffiti occurs, you will always have the color on hand. 

Note: On rocks that have aged from mold, algae, or dirt, there can sometimes be a ‘clean’ spot after removing graffiti, especially if a pressure washer has been used.To restore an ‘aged’ look, you can apply strong coffee grinds. Additionally, sour milk can be brushed, sprayed, or applied and left for a few weeks to create algae staining. 

When you're satisfied with the patina, it’s best to apply our World’s Best Graffiti Coating (WBGC). It’s quick, easy, and ensures graffiti removal is hassle-free in the future.
How to Remove Graffiti from Concrete Dam Walls, Stones, and Boulders Near Streams or Rivers
How to Remove Graffiti from Concrete Dam Walls, Stones, and Boulders Near Streams or Rivers
807 sq. ft. of graffiti removed from Canyon Lake at Boulder Creek, Arizona. Images Courtesy of Natural Restorations.
If the World's Best Graffiti Coating is applied to new stones, they should remain clean-looking for quite a while (maybe a couple of years). 

To prevent algae staining, a 2% solution of Copper Sulfate or some newer Benzalkonium Chloride (disinfectant types) can be applied prior to applying the coating.If you're looking for a slightly aged look before applying a coating, use the coffee/milk trick outlined above.

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