How to remove scratches from a car is one of the most common questions among owners in Portugal and Spain. This guide explains the complete process, from diagnosis to final paint protection.
There are two main types of scratches. Micro-scratches and swirls, caused by incorrect washing techniques, are almost invisible to the naked eye but dull the paint over time. Linear scratches, vertical or horizontal, are what most people easily identify because sunlight reflects off them directly. The most common causes are shopping trolleys, bicycles, flora, clothing buttons, other cars, and vandalism.
The first step is always to thoroughly wash the affected area with quality car shampoo, using the two-bucket method or a scratch-free washing process. Once dry, gently run your fingernail along the scratch. If your nail glides over it without feeling anything, the scratch is superficial and can be removed at home with polishing compound. If your nail catches or you feel an indentation, the scratch has penetrated the clear coat and requires professional intervention. Never dry-rub a scratch with your hand or a cloth before this assessment.
For superficial scratches, the at-home process is simple. Apply a pea-sized drop of polishing compound onto a sponge applicator or microfibre cloth. Gently rub the scratched area. 3D One All-in-One is ideal for very minor scratches as it cuts, polishes, and protects in one step. Nasiol CleaRub 505 offers more cutting ability for slightly more stubborn scratches. After removal, wipe off any residue with a clean microfibre cloth.
For deeper scratches that fail the fingernail test, a professional detailer can visually improve the result by 70 to 80 percent through two-step polishing. The first step uses a heavy cutting compound like Nasiol Heavy Cut Blue for light paint or Nasiol Heavy Cut Red for dark or metallic paint. The second step uses Nasiol CleaRub 505 to refine the surface, followed by Nasiol CleaRub 705 for a mirror finish. Scratches that reach the metal or primer require colour touch-up and professional painting.
After the paint is corrected, protection is essential to prevent new scratch accumulation. A 10H hardness ceramic coating like Nasiol ZR53 offers long-lasting protection against daily micro-scratches. Paint protection film (PPF) absorbs slight physical impacts. No protection prevents scratches caused by forceful impact, but both significantly reduce accumulation over time.
When in doubt about the severity of scratches, the best decision is to consult a professional. The evaluation is free and without obligation. The International Detailing Association is the global reference for finding certified detailers. Everything has a solution; the important thing is to understand which solution is right for each situation.