To effectively remove graffiti, you must first determine the type of medium. The medium can be water-based, solvent-based, or a combination of both. The type of medium will determine the appropriate cleaning agent. Water-based paints can be removed with mild detergents and water; solvent-based paints must be removed with mineral spirits or paint stripper. Identifying the medium before applying a cleaning agent will allow you to choose the correct one.
Once you’ve determined the type of graffiti, you can decide how aggressively to remove it. How aggressive to be will depend on the location, visibility, and value of the masonry. While a plain concrete block wall can be aggressively removed, a polished stone base on a national monument or historic building requires extra precautions. Some graffiti removers also have biodegradable ingredients. While many products are aimed at removing graffiti from painted surfaces, the best choice for a painted substrate may be repainting.
Pressure washing can remove graffiti, but is not the best option for softer surfaces. Abrasive removal methods leave marks and shadows on the surface. They also may be harmful to the surface. Use of chemical cleaners should be used carefully, since some products may emulsify the paint or drive it deeper into the surface. While low-pressure power washing may be effective for small graffiti removal jobs, it’s not recommended for large surfaces, as it can lead to an unappealing result.
Sand-blasting is another graffiti removal option. Unlike power-washing, sand-blasting will permanently damage the surface. While it’s effective, sand-blasting will also cause more damage than graffiti removal products. Instead, you can try using a mild product that can remove the graffiti without damaging the surface. If the graffiti is difficult to remove, you can always try to paint over it with a new color.
Graffiti removal Melbourne can also be effective in graffiti removal. Paint-over solutions are often a cheap, effective option. While these products are effective, they often leave patches of paint that are unappealing. As a result, you might need to repaint the wall once the paint-over treatment is completed. As graffiti removal methods become more common, you may find yourself in need of a sprayer.
The best way to remove graffiti on masonry is to poultice it. Poultices consist of an absorbent material, like powder-inert clays, diatomaceous earth, or cellulose products, which is then applied to the stained area. This allows the cleaning solution to stay in contact with the staining material and pull it out. While spraying graffiti removal is a good way to remove stubborn staining, it is important to remember that it’s important to protect the surface with a surface restoration.
The first method is to apply a barrier coating. These coatings are suitable for use year-round, as long as the temperature is above 20 degrees Fahrenheit. Barrier coatings are best applied after surface cleaning on new construction or after restoration cleaning on older buildings. Since they are clear and non-sacrificial, they help protect the building’s appearance. However, there are some concerns associated with barrier coatings. Specifically, they are not good for the surface because it may cause a white film when trapped moisture forms underneath.