End surface partition for mutually separating elongate concrete products which are formed by pouring concrete into and curing concrete in an elongate mould with the end surface partition and one or more post-tension cables placed therein, the end surface partition comprising: a wall comprising a slot in which at least one of the one or more pre-tension cables can be received; confining means which are configured to confine the pre-tension cable(s) received in the slot in order to ensure a respective minimum penetration depth into the slot for each received pre-tension cable; operating means for releasing the confinement by the confining means so that the end surface partition can be removed from the elongate mould, wherein the operating means are configured so that they can be operated after pouring and at least partial curing of the concrete in the elongate mould; wherein the end surface partition further comprises a first side wall and a second side wall, wherein the wall is placed between the first side wall and second side wall and wherein the end surface partition is configured to simultaneously form a first end surface of a first elongate concrete product with the first side wall and a second end surface of an adjacent, second elongate concrete product with the second side wall during pouring of the concrete into and curing of the concrete in the elongate mould; characterized in that the first side wall is provided at a surface thereof which is directed toward the first elongate concrete product to be formed with a first flexible sealing layer, wherein the first sealing layer comprises a first cut (101 A) which coincides with the slot, and wherein the second side wall is provided at a surface thereof which is directed toward the second elongate concrete product to be formed with a second flexible sealing layer, wherein the second sealing layer comprises a second cut which coincides with the slot. a wall comprising a slot in which at least one of the one or more pre-tension cables can be received; confining means which are configured to confine the pre-tension cable(s) received in the slot in order to ensure a respective minimum penetration depth into the slot for each received pre-tension cable; operating means for releasing the confinement by the confining means so that the end surface partition can be removed from the elongate mould, wherein the operating means are configured so that they can be operated after pouring and at least partial curing of the concrete in the elongate mould; wherein the end surface partition further comprises a first side wall and a second side wall, wherein the wall is placed between the first side wall and second side wall and wherein the end surface partition is configured to simultaneously form a first end surface of a first elongate concrete product with the first side wall and a second end surface of an adjacent, second elongate concrete product with the second side wall during pouring of the concrete into and curing of the concrete in the elongate mould; characterized in that the first side wall is provided at a surface thereof which is directed toward the first elongate concrete product to be formed with a first flexible sealing layer, wherein the first sealing layer comprises a first cut (101 A) which coincides with the slot, and wherein the second side wall is provided at a surface thereof which is directed toward the second elongate concrete product to be formed with a second flexible sealing layer, wherein the second sealing layer comprises a second cut which coincides with the slot.