Felting & Felted Foam
About FXI's Thermoforming Process
Foam felting is a thermoforming process that permanently compresses foam. In order to create felted foam, the foam is heated to an optimum forming temperature during the polyurethane manufacturing process. Then, it is compressed to create the ideal properties of felted foam such as FXI's SIF Felt®.
Properties of Felted Foam
The degree of compression controls the physical properties of the felt in the following means:
- Felted foam has increased effective density
- Felted foam affects fluid-to-foam interactions
- The "Firmness" of a felted foam is the felting ratio: original thickness/final thickness.
- Felted foam "firmness" usually ranges from 3 to 10+
Uses of Felted Foam
Permanently compressed felted foam has a wide variety of uses and applications.
FXI produces SIF Felt®, a felted foam that is ideal for use as a fluid conduit, an acoustic regulator, or other general industrial applications:
- Felted foam can perform the filtration functions in industrial applications
- SIF Felt® felted foam is widely used in the digital imaging industry as a conduit to control ink flow in Inkjet printers
- Felted foam also functions as a sound absorbing and vibration damping material for use in office appliances, consumer electronics, and transportation vehicles.