A printing blanket comprising a rigid carrier plate on which an elastic layer is arranged is provided. The elastic covering layer has a surface that can be inked and by which a printing image can be transferred onto a printing material. An end of the carrier plate is not covered by the elastic covering layer, and an end of the elastic covering layer is covered by a sealant. The sealant covered end of the elastic covering layer has a sealing geometry that provides a greater surface area to which the sealant can adhere than a smooth flat surface at the end of the elastic covering layer.