A solid oxide fuel cell device includes layers of solid electrolyte, cathode plates, anode plates, a frame and a non-contaminating, electrochemically stable sealing material. The sealing material may have a CTE of about 95×10−7/° C. to about 115×10−7/° C. The sealing material may include from about 65 wt % to about 100 wt % of glass frit and from about 0 wt % to about 35 wt % of a filler material. The glass frit may include from about 0 mol % to about 43 mol % of a metal oxide expressed as RO wherein R comprises magnesium, calcium, strontium, barium, zinc and/or combinations thereof. The glass frit may also include from about 0 mol % to about 5 mol % Al2O3; from about 0 mol % to about 7 mol % TiO2; and from about 41 mol % to about 60 mol % SiO2.