Bi-oriented polypropylene (BOPP)- the flexible polymeric material made of polypropylene. Polypropylene - the most universal polymeric material, is one of the light and cheap polymers. It is shockproof; it is not deformed at a bend. Bi-oriented polypropylene film can be mono-oriented (OPP) or bi-oriented (BOPP) - more stronger, than usual polypropylene as has other molecular structure (oriented).
