Can You Wash a Car Immediately After Exposure to Sun?
1 Answers
It is not advisable to wash a car after prolonged exposure to sunlight. The specific reasons are as follows: 1. Sudden cooling can alter the physical properties of the car paint: After being exposed to high temperatures or direct sunlight, the car's surface becomes extremely hot. Rinsing it with cold water at this time will inevitably cause sudden cooling, which changes the physical properties of the car paint. The uneven stress on the paint can lead to cracking, resulting in fine cracks and accelerating the aging of the paint. In fact, not only the car body but also the engine, chassis, and various rotating systems are at high temperatures. Applying cold water at this stage can damage the metal structures of the vehicle, especially the mechanical components, thereby shortening their lifespan. In severe cases, it may even cause bursting. 2. Localized overheating: Under intense sunlight, when water is sprayed onto the car body, each water droplet acts like a tiny magnifying glass, concentrating heat on the paint surface. This can lead to localized overheating, easily scorching the paint and leaving permanent water marks. Light water marks can be polished to restore the paint's brightness; severe cases may completely ruin the paint, and the metal panels of the vehicle can be affected by thermal expansion and contraction, losing their smoothness.
