A biobased radical curable composition for forming solid objects

A radical curable composition for forming a solid object comprising

• 10 wt % to 70 wt % of one or more compounds A, based on the total weight of the composition,
• 30 wt % to 90 wt % of one or more (meth)acrylate compounds B, which are different from the one or more compounds A, based on the total weight of the composition, and
• 0 wt % to 25 wt % of one or more compounds C, different from compounds A and B, based on the total weight of the composition,
• wherein:
• each compound A comprises a poly(trimethylene ether) moiety and one or two (meth)acrylate groups,
• the poly(trimethylene ether) moiety is incorporated into compound A by reaction of a poly(trimethylene ether) glycol having a number average molecular weight Mn, measured by GPC with polystyrene as the standard, of from 500 to 5000 Dalton, and a polydispersity Ð, measured by GPC with polystyrene as the standard, of at least 1.5,
• each compound B comprises a single (meth)acrylate-moiety,
• the one or more (meth)acrylate compounds B, if polymerized together, have a glass transition point (Tg) of more than 30° C., and
• the viscosity of the whole composition is less than 5 Pa·s at 25° C.