Abstract: A composition for a bulkhead of a thin display panel which is a mixed composition comprising a powder of glass or ceramic for molding a bulkhead of a thin display panel or a part thereof and a binder being an organic additive, wherein the above organic additive contains 15 to 50% by weight of a resin composition which generates heat energy by irradiation with an energy ray and which can be cured by energy coming from an energy ray source or the resulting heat energy. To provide a composition for a bulkhead which is used for molding a bulkhead constituting a discharge display cell of a thin display panel or mending a broken part thereof and which is improved in curability.