Rosco RA-400 Spray Patcher

One RA-400 Spray Patcher is capable of repairing more than 200 potholes in a single day.

• Requires a single operator to make pothole repairs, and the employee never has to leave the safety of the truck cab
• Powered by a Kubota Tier 4 Final 65-hp diesel auxiliary engine
• The RA-400’s telescoping delivery boom extends and retracts to perform a four-step spray injection process that the operator controls with a joystick
• First, a hydraulically driven, high-volume blower cleans the pothole
• Second, a tack coat of emulsion is applied to the area
• Third, a mixture of aggregate and hot emulsion fills the pothole
• Fourth, a finish coat of dry aggregate is applied
• The whole process takes about a minute, so arterial road or residential street closures aren’t necessary. The patch is immediately ready for traffic flow