OUR NEW POLYYOLEFINIC PRODUCTO.

was designed for the production of cross-linked polyethylene -PEX- tubes using the extrusion method. It is commonly used in plumbing and radiant floor heating systems. PEX tubes offer hardness, durability, and resistance to exceptional high temperatures.

THERE ARE 3 MAIN MANUFACTURING PROCESSES
USED TO PRODUCE PEX

1 Peroxide or "Engel" method

The HDPE polymer is melted, peroxide will decompose creating free radicals, and the cross-linking of molecules occurs at temperatures exceeding the polymer's decomposition temperature. The resulting PEX is named as PEX-a.

2 Silane or moisture-cured method

The reticulation of the -HDPE- polymer molecules is performed after the extrusion process using a catalyst and exposing the PEX tube to water (steam bath). This is probably the most common manufacturing process, named as PEX-b se fabrica mediante este proceso. is a high-density cross-linked polyethylene -HDPE- and is classified as PEX-b.

3 Irradiation or cold cross-linking method

After extrusion, the tube is exposed to an electron beam. The radiation breaks existing bonds between the polymer molecules and initiates the cross-linking process named as PEX-c.

Comparing the 3 PEX, production methods PEX-b tubing has the highest burst pressure compared to PEX-a and similar or better resistance to oxidation, a very important factor for plumbing installations. Furthermore, PEX-b tubing has been used for over 40 years without known issues.