Removing graffiti is possible on most surfaces, but the type of surface will determine the best method to clean it properly. Continue reading and find out how to remove graffiti on unwanted surfaces.
First, know your surface
It matters to know whether the surface we are about to clean is porous or non-porous, as this guides what materials or chemical solutions you should use.
Porous surfaces allow the natural flow of air, water, and other liquids on its cell structure. Some examples are wood, carpet, cardboard, and drapes. On the other hand, non-porous surfaces are more compact and prevent air or liquid from penetrating the material. This means it’s easier to clean as the solutions stay on the surface.
Wood
Since wood is a porous surface, removing graffiti can be tedious and challenging. Before you dive into applying chemical solutions, ensure you check the condition of the timber first. Checking its condition will save you from the frustrating and expensive situation of ruining the entire structure. Remember that you might have sprayed a good amount of paint on a wood surface with lacquer or any other wood preserver chemical.
Once done checking its condition, you may proceed to remove the graffiti. You may use soap, water and a brush to complete the removal. Or if the graffiti is too stubborn to clean, you may use the following:
- Denatured alcohol
- Mineral spirits
- Petroleum solvents
Using a clean rag, put a generous amount of any of these solutions and apply it directly to the affected surface. Ensure that once all of the paint vanishes, you rinse it thoroughly with water to remove the harsh smell of the solvent. Don’t forget to apply lacquer paint after the wood dries to ensure it stays in its quality state.
Glass
It is easier to wipe off a graffiti paint mark on a glass surface. You can use a razor to shave off unwanted graffiti images on any glass surfaces. Ensure to prep the glass first by wiping the surface with warm soapy water using a clean cloth. Let it sit for a good two to three minutes before shaving the paint.
If this method didn’t work, you could rely on other solutions like mineral spirits, denatured alcohol and other solvents to ease the process. Just don’t forget to rinse it after applying these chemicals. If doing this yourself is too overwhelming, you can always turn to your trusted professional graffiti removal company to do the job.
Metal
Metal is another favourite surface graffiti artists use as an art medium. Just like glass, metal is also easier to clean because of its nonporous character. But before anything else, check if the metal surface you are about to clean is free from existing paint. If there’s paint on it, you may use warm water with soap and a microfibre cloth. Gently remove the unwanted pattern from it. Be careful not to put much pressure to avoid scratching the surface. Take note that this process is effective if the graffiti is still fresh.
However, if it takes too long for you to act and the paint dries off already on the surface, you need to use a water-based graffiti remover to get rid of it. This type of solution is safe on surfaces that have paint on them, and you don’t want to damage them. For metal surfaces free from paint, try a lacquer thinner, acetone, white spirit, or any other paint remover available.
Plastic surface
From one porous material to another. Plastic surfaces are also manageable to clean. However, removing graffiti on plastic surfaces with solvents is not acceptable. Chemical solutions like mineral spirits or denatured alcohol will melt your material. For instance, if the paint is still fresh, you may use vegetable oil to remove it. Let it sit for 15 to 20 minutes after application, then wipe it away with a clean rug. Avoid scraping the stubborn paint with sandpaper, as it will damage the plastic’s surfaces. You may use extra-fine wire wool to remove it.
On the other hand, if using this cleaning process is not suitable for you, you can utilise acetone or a nail polish remover. Removing graffiti from a plastic surface can be challenging if you lack the materials to do it. It is best to seek help from a professional graffiti remover to do this complicated job. It will assure you that they use the right tools and solutions on the appropriate surfaces.
Brick
Keep in mind that brick is a porous material – this makes it harder to clean. So, if you want to restore the original look of a brick surface you painted unwanted graffiti on, you may use a graffiti remover paste or gel. You may apply it for 30 minutes before rinsing it off using a water compressor or hosing it down. Using sandpaper to scratch off stubborn pain is advisable for this. But, you have to be gentle when using it so you’ll not damage the integrity of the brick’s surface. Once done, apply a sealer to restore the brick’s texture.
Concrete
Concrete is a porous surface, which can make graffiti removal particularly challenging. The porous nature of concrete allows paint to penetrate deeply, making it difficult to remove completely with standard cleaning methods. Professional cleaners often use chemical strippers or graffiti remover pastes specifically designed for concrete. These products break down the paint’s chemical structure, making it easier to wash away. High-pressure washing is another common technique used, but it must be done carefully to avoid damaging the surface. Abrasive blasting, using materials like sand or baking soda, can also be effective but requires precision to ensure the concrete itself isn’t worn down. In addition to these methods, applying a protective sealant after removal can help prevent future graffiti from adhering as easily to the concrete surface.
Painted Surfaces
Graffiti on painted surfaces requires careful handling to avoid damaging the underlying paint. Professionals typically use mild solvents or water-based graffiti removers that are safe for painted surfaces. These products are designed to dissolve the graffiti paint without affecting the original layer of paint underneath. In some cases, a combination of solvent and gentle scrubbing with a soft brush is used to lift the graffiti. If the graffiti is extensive or deeply embedded, touch-up painting may be necessary after the removal process to restore the surface to its original condition. This often involves matching the paint colour and finish precisely, which can be tricky without professional expertise.
Stone
Natural stone surfaces, such as marble, granite, or limestone, are highly porous and can be easily stained by graffiti. This porosity allows the paint to seep deep into the stone, making removal difficult. Specialised stone cleaners and poultices are often used to lift the paint from the stone’s surface. These products are formulated to penetrate the stone and draw out the graffiti without causing etching or other damage. It’s crucial to use products that won’t harm the stone while effectively removing the graffiti. In some cases, low-pressure steam cleaning may be employed to gently lift the paint without damaging the stone. After graffiti removal, sealing the stone can help protect against future graffiti and other stains.
Asphalt
Graffiti on asphalt surfaces, such as driveways, streets, or car parks, can be particularly tough to remove due to the material’s rough texture. Asphalt is a composite material that can absorb paint deeply into its surface. High-pressure washing combined with specialised graffiti removal chemicals is typically required to break down the paint and lift it from the surface. These chemicals are designed to penetrate the porous surface of the asphalt and dissolve the graffiti paint. It is important to choose the right products to avoid degrading the asphalt itself. After the graffiti is removed, applying a sealant to the asphalt can help protect it from future vandalism and extend the life of the surface.
Tiles
Tile surfaces, common in bathrooms, kitchens, and outdoor areas, can also fall victim to graffiti. The smooth, non-porous surface of tiles can make graffiti easier to clean compared to porous materials. Depending on the type of tile and the nature of the graffiti, professionals might use chemical cleaners or abrasive pads. For instance, ceramic tiles can often be cleaned with mild detergents or graffiti removal sprays, while more delicate tiles like natural stone require gentler methods. It’s important to ensure that grout lines are not damaged during the removal process. Grout, being more porous, can absorb graffiti paint more readily than the tile itself. Therefore, specialised grout cleaners or sealants might be necessary to fully restore the surface.
Fabric
Graffiti on fabric surfaces, such as awnings, outdoor furniture, or even clothing, presents a unique challenge. Removing graffiti from fabric requires specialised cleaners that can dissolve the paint without damaging the fabric. For example, enzyme-based cleaners are often used because they can break down paint particles without harming the fabric fibres. In some cases, solvents like rubbing alcohol or acetone might be used, but they must be applied carefully to avoid discolouration or weakening of the fabric. Sometimes, deep cleaning or even replacement of the fabric may be necessary if the graffiti is too embedded. Professional services often have access to industrial-grade cleaners and techniques that are more effective than consumer products.
Vehicles
Graffiti on vehicles is a common issue, particularly in urban areas. Professional graffiti removal from vehicles often involves automotive-safe solvents and polishes to remove the paint without damaging the car’s finish. These products are designed to dissolve graffiti paint while being gentle on automotive clear coats and finishes. In some cases, professionals may use clay bars or buffing machines to remove stubborn graffiti without scratching the vehicle’s surface. If the graffiti has penetrated the clear coat or caused damage, detailing and repainting may be required to fully restore the vehicle’s appearance. This often involves carefully matching the paint colour and texture, a process that requires professional skill and equipment. Regular waxing and the application of protective films can help protect vehicles from future graffiti attacks.
Can’t remove graffiti? Call Bye Bye Graffiti
Graffiti adds colour to a street or even a city, but if artists don’t know their boundaries, it may cause problems for establishments where they leave their mark.
We understand the pains of removing unwanted patterns on your walls. At Bye Bye Graffiti, we use tools that are safe and environmentally friendly to clean these surfaces. Our team are trained professionals who know their duties and can give you valuable information about the job.
Contact us today to find out more about our services, including graffiti removal Melbourne, and how we can help you protect your property.