The electrodeposition of coatings of molybdenum from a sodium and lithium metaborate‐molybdate‐molybdenum oxide fused salt system was investigated. Coatings up to 16 mils thick were deposited on Inconel, Carpenter 20 stainless steel, nickel, copper, and graphite at current densities of 3.1–6.2A dm−2 (0.2–0.4A in.−2) and 900°C under an argon atmosphere. The composition of the electrolyte is critical; deposits are obtained only when the electrolyte contains between 1.0 and 3.3% molybdenum.