Abstract: The invention relates to a process for manufacturing a nonflat article comprising the steps of providing a structure comprising a fibrous material and a resin comprising a polymer derived from an aliphatic polyalcohol with 2-15 carbon atoms and an aliphatic polycarboxylic acid that has an extent of polymerization of above 0 to 1.0, or the precursor monomers of such polymer, wherein the structure has a void fraction of 0.3-0.98 and a water content of below 40 wt. %; and subjecting the structure to the following steps polymerising to an extent of polymerisation of 0.5-1, if necessary, pressing to reduce void fraction, and forming the structure into a non-flat article by applying a force at an internal temperature above glass transition temperature (Tg) of the polymer in a defined order to form a non-flat article having an extent of polymerisation of at least 0.5 and a water content less than 20 wt. %.