Basic materials with PVC coated wire is made of galvanized iron wire as stainless steel.
Polyvinyl chloride (PVC) as a cover annealed wire, standard, and not annealed, galvanized and uncoated. On what pretreatment passed wire price depends on the wire in PVC.
The cheapest is not an ordinary annealed wire coated with polyvinyl chloride.
The most expensive - soft galvanized wire in PVC, due to the fact that in case of damage to the PVC coating, a zinc layer protects the wire from corrosion.
The properties of the polymer coating
As used polyvinyl chloride polymer coating - alkali resistant plastic material capable of resisting most acids, solvents and mineral oils.
Additionally, PVC special additives are added to improve the hardiness and long-term color retention.
PVC coating withstands liquids, ammonia vapors and gases.
In no event should not be confused PVC coating and conventional "polymer coating". After all, the polymer coating is most often refers to a polymer powder coating. And polyvinyl chloride, and the powder paint - polymers, but PVC - a plastic layer and its much thicker and denser than the layer of powder paint.
PVC wire, without mechanical damage can last more than half a century. Polyvinyl Chloride combines with high quality and affordability, explaining its popularity.