Device for dispensing a material by means of pressurized gas and partially gas-filled tubular body for use therein

A device for dispensing a material, comprising:

• a reservoir for the material and an outlet channel connectable to the reservoir,
• wherein the reservoir comprises a tubular body partially filled with pressurized gas and is partially filled with the material to be dispensed,
• wherein one end of the tubular body is welded shut and an opposite end of the tubular body is closed by a sealing member extending over at least part of a cross-sectional area of the tubular body,
• wherein the sealing member is arranged in a sleeve which is connected to the opposite end of the tubular body opposite the welded end thereof, and
• wherein the sealing member has a peripheral portion that is clamped in an inner part of the sleeve and the device further comprises an operating member, the sealing member and the operating member being movable towards each other, the sealing member being configured to be permanently removed by being forced out of the clamping engagement by the operating member.