What is Graffiti?
Graffiti usually refers to unauthorized drawings or texts created in public or private spaces. It is mostly created on walls, buildings, or vehicles using media such as spray paint, markers, pigments, etc.
This art form originated in street culture, particularly in New York during the 1970s. Later, graffiti gradually developed into a global phenomenon. Graffiti comes in various forms.
Some are quick signatures by artists, and others are funny, abstract, or cartoonish characters. Others express opinions on social or political events. However, most graffiti is not authorized.
Therefore, it is often considered vandalism or illegal. Many cities and communities take measures to remove such graffiti.
Laser Graffiti Removal Solution
Laser cleaning machines provide a fast, precise, and environmentally friendly solution for graffiti removal. By using high-energy laser beams, these machines can vaporize unwanted paint and ink.
Whether it’s on brick, stone, or concrete walls, laser cleaning machines ensure non-contact cleaning without damaging the surface beneath. Compared to traditional methods, such as chemical solvents or abrasive blasting, laser graffiti removal produces no secondary pollution. It is especially suitable for areas such as schools, commercial properties, and public facilities.
Laser Graffiti Removal VS Traditional Graffiti Removal Solution
Traditional methods of cleaning graffiti mostly rely on chemicals or mechanical grinding. This method may damage the wall, generate waste, and pollute the environment.
In contrast, laser cleaning can effectively remove graffiti. It does not generate secondary pollution and is environmentally friendly and efficient. At the same time, it causes less damage to the wall. Therefore, laser cleaning is more suitable for cleaning complex graffiti walls.
| Pulse Laser Cleaning | Chemical Solvent Cleaning | Physical Grinding / Sandblasting | High-Pressure Water Jet Cleaning | Manual Scrubbing (with Detergent) | |
|---|---|---|---|---|---|
| Principle | Laser pulse beam vaporizes graffiti at high temperature | Organic solvent dissolves paint | High-speed abrasive particle impact | High-pressure water flow impact | Brush or cloth with detergent manually scrubs the surface |
| Efficiency (Graffiti ≤30μm) | 5–15 m²/h (at 500W power) | Slow speed, complex process | Highest efficiency among methods | Large coverage area | Labor intensive, low efficiency |
| Applicable Wall Types | All wall surfaces | Smooth walls | Solid, rough surfaces | Porous walls | Small areas or newly painted surfaces |
| Environmental Impact | Safe and eco-friendly | Solvent is flammable and toxic | Permanently damages wall, produces a lot of dust | Water pressure is hard to control, produces wastewater | Moderate eco-friendliness but high labor intensity |
| Cost | High initial equipment cost, low long-term cost | High cost for solvents and waste disposal | Low tool cost, high labor cost | Medium equipment and energy cost, high material use | High labor cost |
Laser Graffiti Removal Effects: Before vs. After
Laser Graffiti Removal – Real Customer Cases
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How to Choose a Laser Cleaning Machine
for Graffiti Removal?
For graffiti removal, HANTENCNC has designed and developed a series of portable pulse laser cleaning machines.
For customers with outdoor power supply, we recommend the Seagull pulse laser cleaning machine. The device is small and flexible to use. It can continuously clean outdoor graffiti for 24 hours. For customers without an outdoor power supply, we offer a battery-powered pulse laser cleaning machine. It is as portable as a backpack. It can be equipped with two batteries to solve the problems of no power or limited power easily.
The power range of the pulse laser cleaning machine is 200W to 1000W. For outdoor graffiti cleaning, we recommend two models, 300W and 500W. Among them, the 300W battery backpack model and the 500W Seagull model are hot-selling products. In terms of efficiency, the 500W model is at least 60% more efficient than the 300W model.
In addition, pulse lasers are available in two types: single-mode and multi-mode. Single-mode laser beams are concentrated and highly directional, with small spots and long propagation distances. It is suitable for cleaning thick layers of graffiti or rough, porous walls. Multi-mode lasers have larger spot sizes, usually 50 microns or larger. It is suitable for smooth walls, effectively avoiding irreversible damage to the wall during graffiti removal. Of course, multi-mode lasers are also suitable for rough walls.
Laser Graffiti Removal Applications
Cultural Heritage Protection
Some historical buildings and cultural sites are often graffitied by tourists. This affects the beauty and historical value.
After using laser graffiti removal technology, the original appearance can be restored, and cultural heritage can be protected. This helps increase the international visibility of local culture and spread excellent local culture.
Schools and Educational Institutions
Graffiti often appears in areas such as teaching buildings and playgrounds. Whether it is organized activities or personal creations, it will affect the cleanliness of the environment.
Laser cleaning machines can quickly remove graffiti. This is conducive to maintaining campus order and a beautiful environment.
Commercial and Retail establishments
The exterior walls of shops and shopping malls, especially those in commercial areas facing the public, are prone to graffiti. The storefront art decoration of small commercial facilities such as restaurants and cafes is also. Timely cleaning can maintain the commercial appeal and increase customer return rates.
Public Facilities
Public spaces, such as government buildings, park walls, and street exterior walls, are often areas prone to graffiti.
Laser graffiti removal can restore a clean appearance and enhance citizens’ sense of security. This method is environmentally friendly and efficient and can significantly improve the overall urban environment.
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