Highest Heat Resistance
Kept in contact with 300°C flame for one minute, Furukawa Polyimide Tubing on the left shows no change, while Fluorine resin tubing on the right begins to soften.
Spiral tubing loosens in contact with 300°C flame, the same can never occur in Furukawa Polyimide Tubing (seamless and unitary forming).
Comparison of space factor (left: polyimide tubing, right: Fluorine resin tubing - each shows 15 pieces of 1.0mm inside diameter )
Polyimide tubing has the superior space factor compared to Fluorine resin for 3 times.
Fluorine resin is unlikely to be glued, polyimide is compatible with most types of glue.
The cross section of a Furukawa Polyimide Tubing, shows a multi-layered structure -- the key to bending endurance.
Upper Fluorine resin tubing is less rigid, even harder to pass a conductor through.