EXTRIS has multiple fabrication technologies for the vast range of vehicle filters, including cold cutting, hot cutting or laser cutting, ultrasonic, hot or radiofrequency welding, and is capable of providing flat or tubular filters in accordance with the customer’s design.
Selecting the best materials for the filter is fundamental.
EXTRIS technical fabrics are normally made of PET, PA or PP.Applications on board the vehicle must take into account the typical technical characteristics of the three polymers:
|OPERATING TEMPERATURE RANGE||WATER ABSORPTION||RESISTANCE TO ALKALIS||RESISTANCE TO ACIDS||RESISTANCE TO SOLVENTS|
|POLYESTER||-30°C ÷ 120°C||NONE||LOW||HIGH||LOW|
|POLYAMIDE||-30°C ÷ 100°C||CONSIDERABLE||MEDIUM||LOW||LOW|
|POLYPROPYLENE||-10°C ÷ 75°C||NONE||HIGH||HIGH||HIGH|