Lyman Turbo Case Cleaner is an excellent liquid pre-cleaner that helps remove fouling from extremely fouled cases. Designed as a stand alone pre-treatment before tumbling. Directions for Use: Place fouled cases in a separate container and pour Turbo Case cleaner over them. Cases should not be treated for more than 5 minutes.Notes: Lyman recommends that Turbo Case Cleaner not be added to media. It is a stand alone treatment.