Can Brushes Damage Car Paint?

      In the comparison between automatic and manual car washing, there is a claim that automatic car washing damages paint more than manual washing. The high-speed rotating brushes coming into contact with the car body indeed evoke the image of towels or cloths rubbing back and forth on the surface, potentially leaving scratches.

      The brushes of fully automatic car wash machines make direct contact with the car body. Therefore, the quality of the brushes directly affects the washing results. Inferior quality brushes are a primary cause of paint damage.

      However, the main culprits causing damage to the paint are not the brushes themselves, but the grit and dust carried by the brushes during rotation. The presence of such dust and grit is also one of the indicators used to judge their inferior quality.

      Early car wash machines often used cloth or cotton brushes. These brushes could simulate manual washing, were low-cost, and provided good cleaning results. However, cloth and cotton brushes are not dirt-resistant, easily absorb water, and can consequently lead to scratches on the paint. Therefore, cloth and cotton brushes have gradually fallen out of favor.

      Zhengheng car wash machines use brushes made of imported foam material. The characteristics of this foam brush are that it is solid (non-porous), has a smooth surface, does not absorb water, does not retain泥沙, resists aging, resists acids and alkalis, is not prone to tangling, is wear-resistant, and has a long service life.

      Foam brushes have a soft and gentle texture. Even during high-speed rotation and contact with the car body, they can effectively protect the car paint.

      When the car wash machine operates, it first uses high-pressure water jets to rinse off large particles of dust and sediment from the car body, preventing them from being drawn into the brushes. During washing, the machine automatically senses the vehicle model and adjusts the washing mode. The contact surface between the foam brushes and the car body maintains an average pressure with low pressure intensity. After washing is completed, the brushes continue to spin idle for a period, using centrifugal force to fling out any sediment, keeping the brushes clean as new. By focusing on these details, protection for the car paint is achieved throughout the washing process.