Principles of the stabilization of hard and of plasticized (solvents i
ncluding) PVC are basically different. The stabilization of the PVC in
fabricating hard materials and products is based on realization of th
e fundamental law: the chemical stabilization of the PVC. In creating
plasticized material and products (including solvent), stabilization o
f the PVC is founded on realization of different principles and fundam
ental laws: solvation and ''echo'' stabilizations.