The material PERT (Polyethylene of Raised Temperature resistance) is a heat-resistant polyethylene. This material is obtained by replacing "flat" butene in a chemical reaction with octene, which has a structure branched in space. Subsequently, it forms side branches near the main chain, which are intertwined monomer chains.

Thanks to this structure, PERT acquires properties such as increased long-term heat resistance and increased strength, but retains the flexibility inherent in conventional polyethylene.

The advantages of pipes made of heat-resistant polyethylene are high strength and heat resistance, resistance to corrosion, overgrowth, silting and salt deposition; high chemical resistance, resistance to mechanical damage, low roughness, high noise absorption capacity, low thermal conductivity, high plasticity and low weight, technological and economical installation.

Compliance with the passport operating conditions guarantees a 50-year service life of the products.