Radiation-curable composition for use in rapid prototyping or rapid manufacturing methods

Polymerisable radiation-curable composition comprising

• (i) monomers and
• (ii) at least one further component,
• wherein
• in the composition are present
• (i) 40 to 99.99% by weight (a) at least one first monomer or a mixture of first monomers having a TG (glass-transition point) of the respective homopolymer of the corresponding first monomer of greater than or equal to 120° C., and as at least one first monomer at least one triacrylate derived from 1,3,5-tris(hydroxyalkyl) isocyanurate, wherein the hydroxyalkyl residue each independently comprises 1 to 8 C-atoms, and optionally comprises di-functional acrylates having a bivalent alicyclic group and/or di-functional methacrylates having a bivalent alicyclic group, and
• 0 to 60% by weight (b) at least one second monomer or a mixture of second monomers having a TG (glass-transition point) of the respective homopolymer of the corresponding second monomer of less than or equal to 100° C., and
• (ii) 0.01 to 5% by weight of the at least one further component comprising at least one photo-initiator for the UV and/or Vis spectral region or a photo-initiator system for the UV and/or Vis spectral region, and optionally at least one stabiliser for the UV and/or Vis spectral region, and optionally at least one pigment and/or dye as well as further additives,
• wherein the total composition amounts to 100% by weight, and wherein the viscosity of the composition at ambient room temperature (approx. 20° C. to 23° C.) is less than or equal to 3000 m·Pas.