If you’ve ever heard that automatic car washes scratch your paint, you’re not alone. But modern car wash equipment has come a long way—and the foam brushes used today are specifically designed to be gentle on your vehicle’s finish.
Modern wash systems use soft, closed-cell foam rather than the stiff bristles associated with older equipment. Because closed-cell foam doesn’t absorb water or hold onto dirt the way older materials could, it provides a soft, lightweight surface that safely glides across your vehicle. Combined with plenty of soap and water, the foam helps loosen and lift dirt rather than grinding it into your paint.
But the foam is only part of the equation. Before those brushes do their work, modern wash chemistry helps loosen dirt and road film from the vehicle’s surface. Soap and water also provide lubrication as the foam moves across the car, allowing the equipment to lift away grime while minimizing unnecessary friction against the clear coat.
The equipment itself has evolved, too. Today’s wash systems are engineered to control how the foam makes contact with different parts of a vehicle. Rather than relying on the stiff, abrasive scrubbing many people picture when they hear the word “brush,” soft foam wash media flexes and moves with the contours of the vehicle as it cleans.
So while the word “brush” may bring to mind the car washes of decades past, the technology behind today’s equipment is very different. Those big spinning pieces of foam are the result of years of improvements in materials, chemistry and wash equipment—all designed to deliver a thorough clean while treating your vehicle’s finish with care.