Cooling Pads by Thermaltake. Details:Thermaltake P1000 Pastel Coolant Series is formulated to impress and simplify the process of setting up your water loop! Thermaltake P1000 Pastel Coolant Series is designed with Thermaltake's latest formula to be used as an anti-corrosive 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 make filling up your system super easy! The new formula also provides P1000 Pastel Series with color saturation and stability, as well as low viscosity that enables effective flow.