parker ptfe and fep tubing

 fluoropolymer tubing information thv  

 

 

How To Shrink Guide - PFA Tex-Shrinkable Tubing 
TexLoc PFA heat shrinkable fluoropolymer tubing is a high quality tube that has been expanded mechanically to slide over a part and is then heated to shrink down to a tight fit that will not fall off.  It can be manufactured in a variety of shrink ratios depending on the type of material.

 

PFA (Perfluoroalkoxy) - Shrink Temperature:   375°F-190°C

PFA heat shrink tubing will shrink about the same as FEP heat shrink except that it requires a higher shrink temperature.  It is used where you need an operating temperature of 500°F-260°C but the item you are putting the tubing over will not take the high shrink temperature of PTFE heat shrink.

 

Installation

 

  1. Read all instructions first. 
  2. Large objects or solid rods must be pre-heated to get a uniform shrink on  the length of the large object being overheated.
  3. If you have a long cable of tube to shrink over, start at one end and rotate while applying heat.  This will give a uniform shrink with no air bubbles between the shrink tubing and the rod or cable.
  4. Heat uniformly around the shrink tubing until the tubing begins to shrink.
  5. Remove the heat source to prevent overheating.  Allow the shrink tubing to cool slowly.  Rapid quenching in water may freeze the material and prevent complete recovery.

CAUTION:  If the tubing cracks, you have probably over heated the material.