A kit comprises paste (A) and paste (B). The paste (A) contains radical polymerizable monomer(s) (a1), peroxide(s) (a2) and tertiary amine(s) (a3). The paste (B) contains radical polymerizable monomer(s) (b1), heavy metal compound(s) (b2), and sulfimide(s) and/or dicarboxylic acid imide(s) (b3) as copolymer ion accelerator. The pastes (A) and (B) contains filler as component (a4) and/or (b4), respectively. The filler is insoluble in radical polymerizable monomer(s) (a1) and/or (b1). A kit comprises paste (A) and paste (B). The paste (A) contains radical polymerizable monomer(s) (a1) having boiling point of less than 120[deg] C under pressure of 1.013 mbar, peroxide(s) (a2) as polymerization initiator, and tertiary amine(s) and/or amidine(s) (a3) as copolymer ion accelerator. The paste (B) contains radical polymerizable monomer(s) (b1) having boiling point of less than 120[deg] C under pressure of 1.013 mbar, heavy metal compound(s) (b2) as polymerization accelerator, and sulfimide(s) and/or dicarboxylic acid imide(s) (b3) as copolymer ion accelerator. The pastes (A) and (B) contains filler as component (a4) and/or (b4), respectively. The filler is insoluble in radical polymerizable monomer(s) (a1) and/or (b1). An independent claim is included for molded product, which is obtained by polymerization of paste obtained by mixing paste (A) and paste (B) of the kit.
