in vertical direction only 15 of the volume and by compression in the longitudinal direction of the component 30 of the volume or by compression in the direction of the width a reduction in volume of about 35 after this article specific precompression the covering layer 48 which extended initially only over a portion of the initial length 64 and the initial width 62 of the mold surface 33 for example covers now a surface of the shaped part 2 over its entire face as can be seen from fig6 thereafter as already described schematically in fig1 the reaction fluid for example vapour with a temperature of 160 u00b0 c to 180 u00b0 c in particular dry steam is fed into the mold cavity 28 through ventilation openings 37 or openings which are arranged especially for this purpose these reaction fluids in particular vapour or a solvent introduces the reaction of the liquid coating 47 or the synthetic material and this liquid raw material foams up due to an appropriate gas formation and the development of a cell structure of open and or half open and or closed cells between the individual granules 10 11 for example as indicated schematically in fig6 this way the initially loose granules 10 11 are integrated into a soft medium or hard cell structure depending on the desired strength based on the raw material used and this leads to a strenghtened shaped part 2 having the desired thickness and hardness after the reaction.