
Stiffening of plastic materials
As the technology of vacuum forming of plastic materials does not enable stiffening of plastic, e.g. by insertion of stiffening rib, by strengthening of wall of plastic material, therefore it is sometimes necessary to stiffen the plastic part subsequently. The plastic part is stiffened in order to create or adapt its shape, to thicken the material, to change its inner colour or to adapt the part for insert of other assembly parts.