Liquid Metal Thermal Material Destroys Aluminum Heatsink

"Coollaboratory Flüssigmetall" is a thermal interface material that should not be used with aluminum heatsinks, according to the manufacturer. By that innocuous warning on the product one would assume it causes some minor oxidation over time, or reacts with unanodized aluminum in a minor way that reduces thermal conductivity... Well, according to this report by Nokytech that is a substantial understatement!