A customer that had been using a graffiti remover purchased from a large retail store recently contacted Snagwolf. After multiple applications of the retail graffiti remover, there was a shadow that remained on the front columns of a concrete building. The retail product did not have strong enough active ingredients to penetrate and remove the shadowing. The customer then used SnagWolf’s Safety Two Graffiti Remover. In one application, the shadow was faded. After the second application, the shadow was undetectable.
As much as we would like to say we have these kinds of results every time, the reality is that each application (and base material) is different. Using an industrial strength product, like Safety Two Graffiti Remover, will give you the best chance of removing shadowing.
More About Shadowing… When cleaning the surface of base material there can remain a faint representation of the original graffiti. This is called shadowing. Graffiti works its way into the pores of the base material. In most cases, shadowing can be removed by taking additional steps like soaking and agitating, using a pressure washer and in extreme cases heating up the base material before applying a graffiti remover. The more porous the material, the more opportunity there is for shadowing. If a porous base material is tagged when the base material is warm, there tends to be a better chance for shadowing to occur.
This shadow was left when a home center graffiti remover was used to remove a tag on a porous concrete column. After applying Safety Two Graffiti Remover, the shadow was completely removed.