The Shaft Brush (shaft wiper) is one of the most important elements in a boat's bonding system. The driveshaft bonding brush provides a low resistance connection between the bonding system and the shaft. This connection should allow a properly sized and installed zinc corrosion control system to provide an adequate protection to the shaft and propeller. On twin screw installation you will need to install a Shaft Brush on each shaft. An additional benefit is that zinc installed onto the shaft, will last somewhat longer. After the propeller shaft zinc is consumed, additional protection is then provided by the vessels main zinc corrosion control scheme.
300mm Brass strap with a heavy-duty carbon brush.