The PFA - HP - High purity Polifluoroalcoxy - by Hürner Italia S.r.l. has the same characteristics as the PFA but the surface is much smoother as it is destined to come into contact with specific products, which must not be polluted with traces from the material itself.
The program currently offers HP quality tubes to be coated with glass fiber reinforced polyester resins and solid rods.
Advantages of PFA - HP
PFA - HP is highly resistant to chemicals and remains unchanged in contact with oxygen and ozone. Its clearness is not affected by weathering, and retains its original state also after a long time.
Welding processThe PFA - HP is joined by means of hot air welding with the addition of material or by butt welding. In the hot air welding process they must be performed with wire of equivalent material, in PFA-HP.