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Unfortunately the large blank surfaces of construction sites attract graffiti artists. Removing the graffiti can be time consuming and distract your crew from other jobs.
A hot water pressure washer combined with the appropriate power washing chemicals will cut the job time down and produce impeccable results.
*You will need an electric pressure washer or gas pressure washer of at least 300 psi and 4-5 GPM, coupled with a rotating nozzle for best results.
* Protect your eyes and skin and take the necessary precautions to prevent chemicals from entering the storm drains.
* Start power washing at low pressure from top to bottom using overlapping strokes.
* Wait a few minutes to let the chemicals act but do not let them dry on the surface.
* Rinse thoroughly after you are done.
|Jennifer Mathes, Ph.D.|