The present invention relates to a kit comprising a paste A and a paste B, whereby (a) paste A contains (a1) at least one monomer for radical polymerisation with a boiling point below 120°C at a pressure of 1,013 mbar (a2) at least one peroxide as polymerisation initiator and (a3) as polymerisation co-accelerator, at least one tertiary amine, at least one amidine or a mixture of at least one tertiary amine and at least one amidine and (b) paste B contains (b 1) at least one monomer for radical polymerisation with a boiling point below 120°C at a pressure of 1,013 mbar (b2) at least one heavy metal compound as polymerisation accelerator and (b3) as polymerisation co-accelerator, at least one sulfimide, at least one dicarboxylic acid imide or a mixture of at least one sulfimide and at least one dicarboxylic acid imide whereby at least one of the pastes A and B contains, as component (a4) and/or (b4), at least one filling agent that is insoluble in (a1) and/or (b1), respectively. The invention also relates to the use of the kit for producing a paste for mechanical fixation of articular endoprostheses, for covering skull defects, for filling bone cavities, for femuroplasty, for vertebroplasty, for kyphoplasty, for the manufacture of spacers or for the production of car- rier materials for local antibiotics therapy, as well as a form body.