How to Remove Graffiti From Polycarbonate (Lexan) in London

Polycarbonate is a strong plastic commonly used for glazing like skylights, canopies, bus shelters, and protective barriers. Lexan is a well known brand name for polycarbonate sheet produced by a major plastics company. When graffiti appears on these surfaces you want a solution that removes the paint or marks without damaging the plastic. This guide explains a practical approach to removing graffiti from Lexan and other polycarbonate sheets. We will cover what makes Lexan special, how graffiti interacts with polycarbonate, the best products to use and how to apply them safely, and when to call in a professional. If you would like a quick chat about your specific property in London you can call 020 8050 5997 for a quote or visit the instant quotation page at get an instant quote.

What makes Lexan polycarbonate surfaces special and why graffiti removal matters

Polycarbonate is a durable thermoplastic that offers excellent impact resistance and light transmission. It is tougher than glass in many scenarios but it is not completely immune to graffiti removal challenges. Lexan or other polycarbonate sheets can suffer from hazing, surface dulling, micro scratches, or even slight crazing if aggressive solvents are used. For this reason it is important to approach graffiti removal with products that are safe for plastics. In London many Lexan installations are used in bus shelters, canopies at shopping centres, atriums in offices, and protective barriers in transport hubs. These locations often attract graffiti because they are highly visible and highly accessible. Our goal is to remove the graffiti effectively while preserving the clarity and strength of the Lexan surface. We avoid harsh chemicals that can soften or warp the plastic and we avoid abrasive tools that can scratch the surface and create new hiding places for future vandalism.

Understanding Lexan and other polycarbonate surfaces

Lexan is a brand name for polycarbonate. In practice when people say Lexan they mean polycarbonate sheets used in glazing and protective installations. Polycarbonate is a durable plastic that resists impact better than glass. It is not as hard as glass on the Mohs scale so care is required when cleaning. Polycarbonate can be sensitive to certain solvents including strong ketones esters and some aromatics. Using the wrong chemical can cause clouding cracking or hazing that reduces light transmission. This is why selecting the correct graffiti remover is key. We recommend a plastic safe graffiti remover that is designed to be gentle on polycarbonate yet effective at dissolving paints markers and adhesives. Always start with a small inconspicuous patch before applying across a larger area. In some cases acid etched marks or deep inks may require professional restoration or re glazing.

Common types of graffiti found on Lexan and how they respond to cleaners

Graffiti on polycarbonate can take several forms. Each type responds differently to cleaning products and methods. Here are the most common variations you will encounter and what to expect when removing them.

• Marker ink and paint markers These usually sit on the surface and can be lifted with a plastic safe graffiti remover and a soft cloth. They tend to come off more easily on clean Lexan than on textured or etched surfaces.
• Aerosol spray paints These can be more stubborn and may require longer dwell times and a combination of solvent and gentle scrubbing. It is important to avoid aggressive scrubbing that can scratch the surface.
• Adhesive residues Things like stickers glue and tape adhesives can leave sticky residues behind. A plastic safe adhesive remover or a dedicated adhesive remover designed for plastics will help clear these without harming the Lexan.
• Acid etched graffiti Some graffiti can involve acids or etchants that have partially etched the surface. This kind of damage can be more challenging because it literally changes the surface texture. In many cases restoration or panel replacement is needed for etched areas. If etching is light professionals can sometimes restore clarity with polishing or buffing but this work requires experience and correct equipment.
• Ink from permanent markers Permanent markers can penetrate minor surface pores in some Lexan finishes. A careful approach using a plastic safe remover and repeated passes may be required to fully remove the marks.

Planning your approach and patch testing

Before cleaning a large area it is essential to perform a patch test. Lexan sheets can vary in composition slightly depending on the manufacturer and their coatings. What works on one sheet might not be ideal for another. Patch testing helps confirm that the cleaner you plan to use will not cause clouding hazing or surface damage. Use a small inconspicuous area on a corner or the underside of a canopy to test. Apply a small amount of the cleaner with a soft cloth and gently wipe with a circular motion. After a short dwell time rinse and dry the area to inspect for any changes. If the patch test looks good you can proceed with cleaning the larger area. If there is any sign of damage STOP and consider consulting a professional. We are happy to help assess and treat in London and surrounding areas.

Choosing the right products for polycarbonate graffiti removal

The most important choice is using a plastic safe graffiti remover. These products are formulated to be less aggressive and to minimize chemical attack on plastics. Look for the following characteristics when selecting a cleaner:

• pH neutral formulation or near neutral. Strong acids or bases can damage Lexan surfaces.
• Safe for plastics and polymers including polycarbonate. The product label should specify compatibility with plastics or Lexan or polycarbonate materials.
• Low risk of leaving streaks or clouding. Some cleaners leave a residue that can be wiped away later but others may require extra rinsing.
• Non abrasive and non caustic. Avoid abrasive pads or brushes which can scratch the surface.
• Easy to rinse with clean water. A simple wipe rinse helps maintain the transparency of Lexan.

Commonly used categories include plastic safe gel cleaners spray on solvent gels and wipe on cleaners designed for plastics. If you are unsure about a product read the label or check with the supplier. In London we often recommend products that are readily available through local suppliers and our team can advise on the best option for your exact surface and graffiti type.

Step by step method to remove graffiti from Lexan surfaces

Step 1 assess the graffiti and read the label

Take a close look at the marks. Are they on the surface or have they penetrated the top layer? Is there a glaze or coating on the Lexan that could interact with cleaners? Read the product label and follow all safety instructions. If you are cleaning a high traffic area such as a canopy in a busy pedestrian zone consider scheduling a time when access and ventilation are good and the surface can be protected during the process.

Step 2 patch test

As explained earlier patch test in an inconspicuous area. This is to protect the main area from possible damage and to confirm compatibility. If the test confirms safety proceed with cleaning the area. If not contact a professional for advise.

Step 3 apply the remover using a soft cloth

Apply a small amount of the plastic safe graffiti remover to a soft microfiber cloth or a lint free pad. Gently wipe the graffiti in a circular motion. Do not press hard or use rough materials. Polycarbonate can scratch easily so a light touch is essential. Work from the outer edges towards the center to avoid pushing paint back into cleaned areas.

Step 4 dwell time and observation

Allow the cleaner to sit for a short period to soften the paint. The exact dwell time will be indicated on the product label but generally keeping the area damp for 30 seconds to a minute is enough for surface graffiti. Do not let the remover dry on the surface. If it dries re apply a small amount and re dwell for a shorter period.

Step 5 wipe and rinse

Wipe away the loosened graffiti with a clean soft cloth. Rinse with clean water and dry with a lint free cloth. Inspect the area. If any graffiti remains repeat the process. Avoid using a second cleaner with a harsher formula in an attempt to speed up removal as this increases risk of damage to Lexan.

Step 6 handling stubborn marks and etched areas

Stubborn marks may require multiple passes or a slightly different product. If the marks are etched into the surface or if clouding appears during cleaning stop and consult a professional. For etched marks there are restoration techniques that may be able to restore transparency. These usually involve professional polishing or re glazing and can be more costly but are an option when replacement is not feasible.

Step 7 drying and final inspection

After cleaning and rinsing thoroughly dry the surface. A air line or soft cloth can be used to speed drying. Inspect the surface for streaks or dull patches. If any remain repeat the cleaning steps. For any residual staining consider a second treatment using a slightly different product designed for plastics in case the initial one did not completely remove the stain.

Step 8 protection after removal

Consider applying a protective coating designed for polycarbonate surfaces. A nano coating or ceramic coating can add a slim protective layer that repels graffiti and makes future cleaning easier. If you plan to apply a coating follow the product instructions carefully and ensure the Lexan surface is clean and dry before application. Applying a protective layer can extend the time between cleanings and reduce future maintenance costs.

Tools and products you might need

Having the right tools makes the job easier and safer for the Lexan surface. Here is a practical shopping list that you can use and adapt depending on the graffiti type and the location in London:

• Plastic safe graffiti remover suitable for polycarbonate
• Soft microfiber cloths or lint free wipes
• Non abrasive nylon scrub brush for stubborn marks
• Fresh clean water for rinsing
• Pure or distilled water for final rinse if minerals in tap water may leave spots
• Soft absorbent towels for drying
• Gloves safety goggles and a mask if you are working in a poorly ventilated area
• Patch test patch materials for testing in inconspicuous areas
• Polycarbonate compatible protective coating or sealant for aftercare

When shopping for cleaners look for terms like plastic safe solvent oil free and non chlorinated. If you are unsure ask a supplier or contact a professional who has experience with Lexan surfaces. In London our technicians routinely assess and select the best cleaner for the exact surface and graffiti type you face on the day.

Safety tips and terminology explained

Let us walk through some terms you might see when shopping for graffiti removal products and when talking with a cleaner. We explain terms so you feel confident about what you are using on Lexan surfaces.

• Polycarbonate A durable plastic used in glazing and safety applications. Lexan is a common brand name for polycarbonate sheets.
• Graffiti remover A product designed to chemically loosen paint ink or adhesives from surfaces. For polycarbonate you want a remover safe for plastics and not overly aggressive.
• Patch test A small area tested first to ensure the cleaner does not damage the surface or alter its appearance.
• Non abrasive A cleaning action that does not wear away the surface. This is important for Lexan to avoid micro scratches.
• Rinse and dry After cleaning it is important to rinse away residue and dry completely to avoid water spots or hazing.

Why you should consider a professional in London

Lexan surfaces can be tricky when it comes to graffiti removal. Some paints and inks penetrate the surface more deeply especially if the surface has been treated or coated for glare resistance or UV protection. While many graffiti issues can be resolved with a careful patch test and a plastic safe remover, stubborn graffiti or etched marks may require professional equipment and techniques. A professional will have access to industry grade plastic safe cleaners that may not be readily available to the public. They also have the experience to carry out the work without causing damage to the sheet or to adjacent panels. If you are dealing with a large area or several panels on a canopy or bus shelter in London we recommend engaging a pro to ensure the best possible outcome. Our local team in London covers all boroughs and can respond quickly to assess the scope of work and provide a clear plan including any required aftercare such as a protective coating that helps deter future graffiti.

Local value and community focus

London is made up of a lot of outdoor infrastructure from bus shelters in busy high streets to glass ceiling skylights in shopping centres. When graffiti hits polycarbonate surfaces it can remove the aesthetic of a property and can impact the perception of safety for nearby pedestrians. It can also degrade the readability of signs or obscure lighting which is important for safety. Taking care of Lexan surfaces quickly helps preserve the light transmission and overall appearance of the area. This is not only about keeping a property looking pristine it is also about maintaining property value and ensuring safety in public spaces. We know the city and its neighborhoods well from Shoreditch to Canary Wharf and from Clapham to Wembley and we are ready to help with prompt responses and practical solutions that respect local life and business operations.

Area focus for polycarbonate graffiti removal in London

In London there are many installations that use Lexan or similar polycarbonate sheets. We frequently work in areas including Shoreditch Hackney Dalston and Bethnal Green where bus shelters and canopy installations are common. In central London we tackle glazing projects around the City of London Westminster Covent Garden and Bloomsbury. Across the river we handle projects in Southwark Lambeth and Tower Hamlets. West London sites may include Hammersmith Fulham Kensington and Chelsea. Outer boroughs such as Croydon Bromley and Bromley also have polycarbonate installations that require careful cleaning. Our team knows the materials choices for these areas and we tailor a plan based on the specific Lexan type used on your property whether it is a skylight canopy or a protective barrier. If you are unsure whether your surface is Lexan or another polycarbonate sheet we can identify the material and guide you to the safest removal method.

Getting a quick quote or arranging service

If you would like to arrange a site visit or receive a quotation for removing graffiti from Lexan surfaces we are ready to help. Our local London team can assess the area explain the options and provide an estimate. You can call us at 020 8050 5997 for a quote or use our instant quotation page at get an instant quote. We pride ourselves on clear pricing with no hidden fees and no lazy contractors. We handle a wide range of materials and we explain terms clearly so you know exactly what is happening during the removal process.

Frequently asked questions

Can any graffiti be removed from Lexan without replacement

Most graffiti on Lexan can be removed using a plastic safe remover and careful cleaning. Some marks especially etched or deeply embedded stains may require restoration or panel replacement. A patch test will help determine if the damage is reversible without replacement. If the surface has significant haze or cracking that is beyond cleaning replacement may be the most practical option.

Is Lexan easy to damage with cleaning products

Lexan is more forgiving than glass but it can be damaged by strong solvents or abrasive tools. Always opt for plastic safe cleaners and avoid rough scrubbing. Patch testing is essential and if you are unsure at any point it is best to contact a professional for help in London.

What are the signs that a cleaner is not suitable for Lexan

Look for warnings on the product label that state it is only for glass or its use on plastics is not recommended. If you notice clouding dulling or whitening after applying the cleaner stop and rinse immediately. These are signs the product is not suitable for polycarbonate surfaces.

Are there long term protections I can apply after graffiti removal

Yes a protective coating designed for polycarbonate can help repel graffiti and make future cleanups easier. Some coatings offer UV protection and anti gloss properties that maintain clarity. It is important to ensure the coating chosen is compatible with Lexan and that it is applied according to the manufacturer instructions. We can advise on appropriate aftercare options for your specific site in London.

What should I do if the graffiti is on a bus shelter or public area

Public postings require safety and coordination. When cleaning in public spaces like bus shelters you should work during off peak times to minimize disruption and ensure worker safety. If the graffiti is large or stubborn it is best to schedule a time with site managers or the local council and carry out the work in a controlled manner to ensure no one is put at risk.

How long does Lexan graffiti removal take

For small areas the removal can be completed in less than an hour. For larger installations or heavily painted surfaces you may need more time especially if you need to dry between passes. If the area has multiple panels the job may require a staged approach to avoid disruption and to ensure the best finish on every piece of Lexan.

What if I am not sure my surface is Lexan

Polycarbonate sheets have a unique look and feel. If you are unsure we can help identify the material and confirm the safest removal method. We can test the surface and determine whether Lexan or another polycarbonate grade is present and tailor the cleaning method accordingly.

Do you offer emergency graffiti removal for London properties

Yes we offer a same day response service for graffiti removal across London. We understand the urgency of restoring a property identity and maintaining a safe and welcoming environment. You can reach our team at the number above for rapid assessment and scheduling.