Multi-chamber film bag and use thereof

A multi-chamber bag portion for a curable multi-component compound, comprising:

• at least two chambers separated from one another in liquid-tight manner, wherein one of the chambers is filled with a reactive component and at least one other chamber with a hardener component for the reactive component,
• at least one separating element, which in storage condition separates the chambers from one another in liquid-tight manner and in ready-to-use condition provides fluidic communication between the chambers for mixing of the reactive component and the hardener component, and
• an opening portion, which can be opened to discharge the mixed multi-component compound, wherein the separating element comprises a clamping rail equipped with a longitudinal groove and a clamping strip, and
• wherein either the clamping rail or the clamping strip is securely joined to a border of the film bag disposed opposite the opening portion and has a gripping portion, which permits a rotational movement of the clamping rail or of the clamping strip in order to wind the film bag up to the clamping rail or the clamping strip.