A system to express at least two separated materials to a selected location from an expressing assembly, the system comprising: the expressing assembly having a first chamber co-axial and external to a second chamber operable to maintain a first material in the first chamber separated from a second material in the second chamber, an outlet portion including an outlet connection portion extending both from the first chamber and the second chamber, the outlet connection portion having a wall with a first passage (60, 60a) defined by a wall extending from the first chamber, and a second passage extending through a wall from the second chamber; a tip portion having: a tip connection portion including an inner wall operable to be associated with the outlet connection portion; a first tip passage operable to be associated with the first passage (60, 60a); a second tip passage operable to be associated with the second passage when the tip portion is connected to the outlet portion; wherein the association of the inner wall and the outlet connection portion is to assist in directing material from the second passage to the second tip passage; a separate sealing member to be positioned between the tip portion (120,) and the outlet portion, when the tip portion is engaged to the outlet portion, to assist in sealing the first tip passage to the outlet connection portion; wherein the tip portion further comprises an end housing portion (124 operably connected to the tip connection portion and including a material directing portion (140, 220) including a first directing region and a second directing region, to collect and direct material from the expressing assembly, wherein at least the first directing region is defined by a valley in a surface of the end housing portion; wherein the first material in the first chamber and the second material in the second chamber are operable to be expressed through the tip portion. the expressing assembly having a first chamber co-axial and external to a second chamber operable to maintain a first material in the first chamber separated from a second material in the second chamber, an outlet portion including an outlet connection portion extending both from the first chamber and the second chamber, the outlet connection portion having a wall with a first passage (60, 60a) defined by a wall extending from the first chamber, and a second passage extending through a wall from the second chamber; a tip portion having: a tip connection portion including an inner wall operable to be associated with the outlet connection portion; a first tip passage operable to be associated with the first passage (60, 60a); a second tip passage operable to be associated with the second passage when the tip portion is connected to the outlet portion; wherein the association of the inner wall and the outlet connection portion is to assist in directing material from the second passage to the second tip passage; a tip connection portion including an inner wall operable to be associated with the outlet connection portion; a first tip passage operable to be associated with the first passage (60, 60a); a second tip passage operable to be associated with the second passage when the tip portion is connected to the outlet portion; wherein the association of the inner wall and the outlet connection portion is to assist in directing material from the second passage to the second tip passage; a separate sealing member to be positioned between the tip portion (120,) and the outlet portion, when the tip portion is engaged to the outlet portion, to assist in sealing the first tip passage to the outlet connection portion; wherein the tip portion further comprises an end housing portion (124 operably connected to the tip connection portion and including a material directing portion (140, 220) including a first directing region and a second directing region, to collect and direct material from the expressing assembly, wherein at least the first directing region is defined by a valley in a surface of the end housing portion; wherein the first material in the first chamber and the second material in the second chamber are operable to be expressed through the tip portion.