What Can Corrode Car Paint in Summer?
3 Answers
Acid rain in summer can easily corrode car paint. Repair Methods: Minor scratches can be fixed with nail polish, forming a protective layer on the scratched area to prevent oxidation of the paint. Moderate scratches require the use of a touch-up pen. The color of the touch-up pen must match the car's body color. Before touching up, clean the scratched area and wait for the primer to dry. Then, smooth it with water sandpaper before applying the touch-up pen. Severe scratches that are left unrepaired for a long time can rust and affect the surrounding undamaged paint, so it is recommended to visit a professional repair shop for repainting. Methods for Cleaning Paint Stains: Dried tar can be dissolved using a tar remover, then wiped dry with a cloth. If the car body has been exposed to intense sunlight, the tar may have penetrated the paint and caused corrosion due to the sun's effect. In this case, it is advisable to consult a professional to assess the damage. Use sandpaper specifically designed for car cleaning to remove paint and oil stains, then restore the car's shine by waxing.
In summer driving, the most annoying thing is the corrosion of car paint by various substances. The strong ultraviolet rays from the sun act like an invisible killer, causing the paint to oxidize and fade under daily exposure, making it dull and brittle. Bird droppings are a common nuisance; if left uncleaned on the car, their acidic components can quickly corrode the paint under high temperatures, leaving unsightly spots. Acid rain also adds to the trouble, as rainwater mixed with pollutants dries to form white corrosive marks, especially severe near industrial areas. Tree sap and resin that fall from trees are sticky and highly corrosive, making them difficult to clean. Insect remains are no different; the acidic body fluids of squashed bugs can damage the paint layer if not removed. In coastal cities, salt spray and humidity accelerate corrosion. To protect your car's paint, park in shaded areas, wash the car frequently with neutral car wash soap, and apply wax regularly.
In the automotive repair industry, I've witnessed countless cases of summer-induced paint corrosion. UV radiation is the primary culprit, as it damages the resin structure of the paint surface, leading to cracking and aging. Bird droppings contain highly acidic uric acid, which reacts aggressively under high temperatures, penetrating the clear coat. Acid rain carries sulfuric acid and nitrates, leaving permanent corrosive marks, especially during rainy seasons. Tree sap has strong adhesive properties and contains organic acids, making post-corrosion repairs difficult. Insect body fluids are acidic and can destroy the paint's gloss. In coastal cities, salt particles carried by sea mist increase corrosion risks when they adhere to the vehicle. Prompt cleaning is crucial—rinse immediately after rain or upon spotting bird droppings, and avoid handling under direct sunlight. Applying professional protective films or car covers can also prevent corrosion.
