This Undercoating / Sound Deadening Kit comes complete with everything you need to seal your vehicles under body. Included is Eastwood's Rubberized Undercoating, Sound Deadening, Undercoating Plugs, and an extended spray to make it easier to get into tight places.
To clean your conical extension nozzle, remove the button and nozzle and attach to a can of Eastwood’s PRE Painting Prep (10041z or 11949z). Be sure to wear eye protection when swapping nozzles. Purge the PRE through the nozzle in short blasts until you are sure all contaminants are removed.