Does washing a car with seawater cause damage?

1 Answers
BarrettRose
07/30/25 10:24am
Washing a car with seawater can cause damage. Here are some precautions for car washing: 1. Avoid excessive water pressure when washing: At professional car washes, the water guns are carefully calibrated. Generally, the water pressure should be between 4-7Mpa. If the pressure is too low, the car won't be cleaned thoroughly, and if it's too high, the water flow carrying dirt particles may impact the paint layer, causing damage to the car's paint. 2. Avoid washing the car under direct sunlight: After rinsing the car, water droplets on the body can act as convex lenses, focusing sunlight onto the car's surface. Over time, this can cause the paint to lose its luster. The same applies to waxing—it's best to do it on cloudy days or indoors.
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