400-HD National Door Lube 15oz Aerosol (Orange) lube is a special heavy duty (non-silicone) lubricant great for all garage door and operator needs. We call it "Tune Up In A Can". This is a real favorite for the Professional Garage Door Service Companies. Will penetrate frozen parts, threads, bearings and all other metal surfaces to prevent rust, corrosion and build up of dust and dirt that prevent proper function of all types of doors and operators. Special 3-way nozzle sprays a mist to stream in a short twist. 15 oz. size.