TRATOS® Kynar-HMWPE
Cathodic Protection Cable

The single-core unarmoured cable is designed to be the connecting cable in cathodic protection systems worldwide. A fluoropolymer, Polyvinylidene fluoride (PVDF), Trade name Kynar, is a tough engineering thermoplastic, well known for its excellent resistance to a wide range of chemicals, most acids and acid mixtures, weak bases, halogens, halogenated solvents, hydrocarbons, alcohols, salts and oxidants. Kynar has high dielectric strength and excellent mechanical properties over a wide temperature range leading to it becoming a popular choice as a reduced wall primary insulation. Kynar has low permeability leading to its choice for special applications such as cathodic protection where chlorine and hydrogen gasses could be present.

Immediately over the inner layer of Kynar Tratos extrude a thick layer of High Molecular Weight Polyethylene (UHMW) which is a member of the thermoplastic polyethylene (PE) family. HMWPE is also known as high modulus polyethylene. HMWPE is a very tough material with the highest impact strength of all currently produced thermoplastics, which, combined with its excellent abrasion and wear-resistant smooth outer surface, make it ideal as a sheath or outer covering for cables to be installed in arduous conditions.  

HMWPE is resistant to concentrated acids, alkalis and other corrosive chemicals it is also resistant to many organic solvents. Like all Polyethylene’s HMWPE has excellent dielectric strength and electrical properties, as well as extremely low moisture absorption.

Tratos Kynar/HMWPE cables offer high performance and reliability over an extended lifetime in cathodic protection applications.