Glass-to-metal seal absorb the stresses from thermal expansion mismatches. Due to its very low vapor pressure, indium finds use in glass-metal seals used in vacuum technology. Gallium is a soft metal with melting point at 30 °C. It readily wets glasses and most metals and can be used for seals that can be assembled/disassembled by just slight heating. It can be used as a liquid seal up to high temperatures or even at lower temperatures when alloyed with other metals (e.g. as galinstan). Mercury is a metal liquid at normal temperature. It was used as the earliest glass-to-metal seal and is still
XM Liquid Metal A website was set up called XMLM Underground for all the metal fans on XM. This continued well into 2006. On March 22, 2006, head of programing, Eric Logan, dropped hints on the "Opie and Anthony Show" on High Voltage that Liquid Metal will be returning soon. An official announcement on the Opie and Anthony Show was expected the following day. Logan confirmed it on the Opie and Anthony Show of March 23 that XM Liquid Metal will again be broadcast via the satellites on all 5 of XM's musical outlets (US sats, Canadian sats, DirecTV, AOL Radio, XM Radio