What is a foam cannon used for in a car wash?

A foam cannon is specifically designed to apply a thick layer of foam soap onto the surface of a vehicle. This foam serves multiple purposes in the car washing process. Firstly, the thickness of the foam helps to encapsulate dirt and grime, making it easier to lift them away from the paint and other surfaces without scratching. This is particularly important because the foam creates a cushion that reduces direct contact between the wash mitt and the car’s surface, minimizing the risk of swirl marks and scratches. Additionally, the soap in the foam works to break down and dissolve stubborn contaminants, such as road grime and grease, facilitating a more effective cleaning process.

While other tools are used for rinsing and finishing, the primary role of the foam cannon is to deliver that essential cleaning foam, making it a crucial tool in achieving a thorough wash.