IVAR PE-RT

PE-RT (Polyethylene of Raised Temperature Resistance) is a polyethylene with improved mechanical resistance to high temperatures.‎ Standard polyethylene organizes its polymer chains into a lamellar crystalline structure.‎ By mixing a suitable monomer (1-octene) with polyethylene, it is possible to stimulate the formation of amorphous polymer segments connecting the crystals of the material.‎ These segments, called tie chains, exhibit extensibility and mobility and improve the hardness of the polyethylene and its resistance to high temperatures.‎ Therefore, PE-RT production does not require cross-linking, and for this reason the material remains thermoplastic, flexible, and easy to weld.‎ Like PE-X, PE-RT also requires an EVOH barrier to prevent the diffusion of oxygen within heating and cooling systems.‎ PE-RT is often preferred for the construction of radiant systems, where several hundred meters are used for a medium-sized apartment: this is both due to the material's high flexibility, which makes it easy to bend, and the simpler industrial process required for its production, which makes it economically competitive.‎ Further info from manufacturer on IVAR PE-RT IVAR