Marketing InformationThe HeatLink® PEX products are constructed with a unique high-density polyethylene and uses special additives to prevent thermal degradation at high-temperatures and inhibit UV degradation. Tubing used for radiant floor heating systems may be coated with an optional oxygen diffusion barrier to assist with inhibiting corrosion. The HeatLink® production facility has invested in state-of-the-art quality control systems that continuously monitor product quality in real time in addition to the strict quality control testing performed in the two in-house laboratories. Independent testing and certification agencies assure the high-quality of the product and conformity to standard requirements as outlined by ASTM International, NSF International and CSA International to name a few.