Back to Overview

How Tunnel Cleaning Vehicle Brush Systems Work?

Jul 29,2025

How Tunnel Cleaning Vehicle Brush Systems Work?

The quality of your car wash brushes can make or break your business. Because brushes are used extensively, they could wear out sooner than other pieces of equipment; as a result, it’s usually best to invest in higher quality brushes from the start in order to maximize their usefulness and save money in the long run.

In conveyor/tunnel car washes, the main brushes used are top brushes, which descend on an arm from above and roll over the top of the vehicle; wraparounds, which stand on the sides of the tunnel and spin to clean the front, sides and rear of the vehicle; mitter curtains, which are suspended lengths of brush that oscillate to clean the top surfaces of vehicles; wheel and tire brushes; and rockers/low side washers (LSWs), which sit low and spin to clean the rocker panel area of a vehicle.

Recent closed cell foam technology in brushes has allowed for cleaner, shinier cars. In closed cell foam brushes, disconnected, microscopic bubbles in the foam prevent dirt and liquid from seeping into the brush. In addition, this technology is gentler on vehicles since the brushes do not absorb water and weigh significantly less. All of these brushes can be manufactured with this technology and have contributed to a resurgence in popularity for IBA brushes (which can include wraps and top brushes).

Self-serve foam brushes and car-prep brushes, on the other hand, are usually made of hog’s hair. The former is necessary to have in a self-serve car wash bay so that customers can wash their vehicles, and the latter is generally used by attendants to prep cars by removing tough, stuck-on debris before entering a conveyor/tunnel carwash.

NEXT: