The TexLoc LibraryHow To Shrink Guide-PTFE Tex-Shrinkable Tubing
|TexLoc PTFE heat shrinkable fluoropolymer tubing is a high quality tube that has been expanded mechanically to slide over a part. It 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.PTFE heat shrink tubing is the most difficult of the three fluoroplastic materials to shrink because of the extreme shrink temperature. The most reliable way to shrink PTFE is in a controlled temperature oven.||You can use a heat gun or welding torch but it is very difficult to use these methods because they have the tendency to overheat the material in one area while the remainder of the material is too cool to shrink.|
PTFE (Polytetrafluoroethylene) - Shrink Temperature: 621°F/327°C
CAUTION: If the tubing cracks, you have probably over heated the material.