How does the resistance to graffiti removal chemicals vary among these plastics?
The resistance of plastics to graffiti removal chemicals varies significantly depending on the type of plastic and its chemical composition. Common plastics like polyethylene (PE) and polypropylene (PP) exhibit high resistance to many solvents, making them difficult to clean with standard graffiti removers. In contrast, polystyrene (PS) and polyvinyl chloride (PVC) are more susceptible to damage from harsh chemicals, as they can degrade or discolor when exposed to certain solvents. Factors such as molecular structure, additives, and surface finish also play a role in determining a plastic's resistance. Understanding these differences is crucial for selecting the right cleaning method to avoid damaging surfaces while effectively removing graffiti.
