Thermaltake P1000 Pastel Coolant Series is designed with TT latest formula to be used as anti-corrosion protection fluid and heat-transfer medium for PC water-cooling. With the new liquid surface tension optimizer added to the formula, P1000 Pastel Coolant Series has minimized the risk of airlock and made filling up your system easy! The new formula also provides P1000 Pastel Series with color saturation and stability, as well as low viscosity that enables effective flow. Thermaltake P1000 Pastel Coolant Series is formulated to impress and simplify the process of setting up your water loop! Corrosion protection for copper, brass, nickel, and aluminum. By adding optimizer to increase the surface tension of the coolant, it minimizes the risk of airlock to accelerate the process of starting the system. Thermaltake has made filling coolant easy. Thanks to the TT exclusive formula, the old days of repeatedly unplugging the system or waiting for 12 to 24 hours for the air to clear out after filling the loop is behind us. P1000 Pastel Coolant Series has minimized the risk of airlock by adding liquid surface tension optimizer. With P1000, it only takes about 5 to 10 seconds to start the system after filling the loop.