G.R.S contracted to provide a Graffiti solution to Northcliff Ec :: 2013-04-30 Northcliff Eco Park contracted G.R.S to provide a site inspection and chemical solution for the removal of paint and Graffiti from the rocks at the park. Multiple layers of paint and Graffiti have been removed, and currently a new Anti Graffiti Shield is also being applied to keep the surfaces clean.