| UPVC-EPI compound is intended for pipe extrusion and designed to achieve a high-quality product at a competitive price. UPVC-EPI formulations are predominantly made from mills deriving from pipes, mandrels and thick post-industrial and post-consumer profiles. Calcium carbonate is added in variable percentages to optimise the product’s mechanical properties. During the process, additives such as paraffin waxes, Ca/Zn stabilisers and shock-absorbing agents are used to improve processability and technical features. By varying the filtration and gelling degree, different categories of compound are obtained to produce 1 to 20 mm-thick items. There are formulations to produce items of greater thickness (e.g., solid and perforated bars). This compound’s main applications are cores/mandrels for winding, pipes for construction and plant engineering, and profiles for high thickness construction. |
