Page 23 of Polymer Extrusions by Zeus

zeus heat shrink fluoropolymer tubing zeus heat shrink tubing offers a unique combination of properties in its tubing including outstanding electrical characteristics excellent chemical and solvent resistances purity lubricity and outstanding performance reliability zeus has mastered the art of manufacturing fluoropolymer heat shrink tubing and can supply it with recovered walls as thin as .002 please contact a zeus representative to learn more about customer sizes packaging lengths and colors heat shrink application tips 1 always assure good ventilation in the immediate work area prior to beginning the heat shrinking process caution fumes may cause nausea and dizziness 2 the mandrel to be covered by the heat shrink must be able to withstand the required temperature for material recovery see table at right 3 the mandrel being covered may act as a heat sink especially metal mandrels therefore zeus recommends preheating mandrels 4 heat shrink should be allowed to recover a minimum of 20 highly restricted radial recovery tends to induce longitudinal change and increase the tendency for splitting 5 ovens are the most reliable way to recover heat shrink products due to their ability to ensure even heating and reduce the risk of over heating the material which can lead to brittleness and cracking if a heat gun will be used please refer to the picture above illustrating the proper application of heat to achieve the most uniform recovery 6 see chart for recovery temperatures heat shrink recovery temperature material recovery temperature ptfe fep 1 id or less 654°f 670°f 346°c 354°c 400°f 420°f 204°c 216°c 420°f 440°f 216°c 227°c fep 1 id or greater the heat shrink temperatures listed in this catalog are general guidelines actual shrink temperatures may be higher or lower depending on the design and dimensions of the heat shrink application techniques and other factors please contact a zeus technical account manager for more information 22

[close]