PTFE tape is spirally wrapped and given an additional layer of Teflon-coated glass fibre. The final amalgamation of the tape by sintering makes the hose highly leak-tight and suitable for decoupling vibrations and accepting dynamic movements.
In a process called paste extrusion, the finely powdered PTFE is forced under pressure through an annular die and then sintered. Smooth hoses are easier to clean than corrugated hoses, create less turbulence and allow higher pressures to be used. However, they are very prone to kinking and are susceptible to damage.
Manufactured from an extruded PTFE tube, the hose is very flexible due to the corrugations, which also allow the attachment of flanged connections PTFE corrugated hoses are used in medical equipment, the chemical and food industries and for transporting aggressive or hot media.