Castle® Corrosion Off™ cleans batteries and detects leaks in one easy operation. Corrosion is dissolved while Corrosion Off™ detects the location of acid leaks by turning a bright red. A reapplication will show if the acid has been totally removed. This detection feature is a valuable aid in locating cracks and leaks in batteries. Maintaining battery connections can extend the life of your battery while preventing no-start conditions. After cleaning, coat the battery with Castle® Long Life™ Uses: • Cars • Marine • Fleet • Aircraft • Golf Carts • Tractors • Lawn Equipment Directions: 1. Spray all areas of the battery and allow it to stand. 2. Rinse with water. Avoid splashing onto painted surfaces. 3. Reapply to determine if all corrosion has been removed. 4. Repeat until no red appears. 5. Coat connections with Castle® Long Life™ .