EK-CryoFuel also contains synergistic corrosion inhibitors to protect metals commonly found in computer liquid cooling systems. It has been tested in accordance with BS5117 (ASTM D1384) and found to meet corrosion standards for copper, brass, aluminum and stainless steel. The coolant contains everything a high-end liquid cooling system requires for efficient thermal performance and providing the necessary protection for your water blocks. All EK-CryoFuel mixtures are biodegradable (90% in a period of 10 days) and will not remain in the environment or cause any bioaccumulation. EK-CryoFuel offers a 2-year shelf life from the date of bottling.