Conductor compositions

A metallization for printing conductor patterns upon a soda lime glass substrate comprising an admixture of finely divided particles of

• (1) 60 to 98.5% wt. conductive metal selected from the group consisting of Ag, Au, Cu and alloys and mixtures thereof,
• (2) 20 to 1% wt. inorganic binder, and
• (3) 20 to 0.5% wt. of a colorant which is a mixture of 5 to 60% wt. of an oxide of or a precursor of an oxide of copper, silver or mixtures thereof and 95 to 40% wt. of B.sub.2 O.sub.3 or precursor thereof, the colorant being comprised of no more than 40% wt. of oxide of silver or 60% wt. of oxide of copper.