Mass resistant thermoplastic molding inflammation.

Thermoplastic molding material containing an amorphous thermoplastic polymer and at least one flameproofing agent, wherein the molding composition contains at least one alkaline earth metal sulfate and / or oxide with an average particle size of 400 nm, respectively, and that the fireproofing agent includes salts of sulfonic acid Total fluorinated or partially, of the general formula (I) [R-SO3] n- Mn + (I) wherein R represents an aliphatic straight-chain or branched having 1 to 30 carbon atoms or aromatic radical having 6 to 30 carbon atoms, which may be fully or partially halogenated, M is a cation and n is either a number corresponding to the valence of M.