PTFE Heat Shrink Tubing Products

PTFE Heat Shrinkable Tubing 2:1 possess excellent characteristics for use in high temperature applications, corrosive environments and as an electrical insulator. PTFE Tubing has the lowest coefficient of friction among the Fluoropolymer which makes it ideal for applications that need a lubricious slippery material to reduce linear friction. PTFE Heat Shrink Tubing is chemically resistant to all common acids and solvents making it almost 100 % chemically inert. PTFE Tubing has a high dielectric strength over a wide range of temperatures which is why it is an excellent electrical insulator in corrosive environments and high temperature applications.

AWG Heat Shrinkable material is available in three different wall thicknesses just like Extruded PTFE Tubing.  Standard Wall , Thin Wall and Light Wall.

PTFE resins carry a Flame Resistant Rating of UL94 VO and WV-1 which make it ideal for insulating, terminating, moisture sealing, splicing, wire bundling and electrical applications. Although Heat Shrinkable PTFE Tubing does not carry the same UL rating it still complies with a VO rating for flame resistance. Tef Cap can also manufacture PTFE Heat Shrink Tubing Products for applications where wires or instrumentation needs to be colored coded for identification purposes.

PTFE 2:1 Heat Shrink Tubing offers the ultimate performance with the highest continuous working temperature of all Fluoropolymers.

PTFE possesses the lowest coefficient of friction of all Polymers.

PTFE is a non-wetting, self-lubricating material.

PTFE tubing can be sterilized chemically and is auto-clavable.

PTFE Heat Shrink Tubing is made to M23053/12

USP Class VI & FDA compliant

PTFE Heat Shrink Tubing Products / PTFE Heat Shrinkable Tubing

PTFE 2:1 Heat Shrink Tubing • AWG

PTFE 2:1 AWG Heat Shrink • Standard Wall
AWG SizeExpanded IDRecovered IDWall ThicknessAMS-DTL-23053/12
AWG 30.034.015.009 +/- .002
AWG 28.038.018.009 +/- .002
AWG 26.046.022.010 +/- .002
AWG 24.050.027.012 +/- .00223053/12-201
AWG 22.055.032.012 +/- .00223053/12-202
AWG 20.060.039.016 +/- .00323053/12-203
AWG 19.065.043.016 +/- .00323053/12-204
AWG 18.076.049.016 +/- .00323053/12-205
AWG 17.085.054.016 +/- .00323053/12-206
AWG 16.093.061.016 +/- .003
AWG 15.110.067.016 +/- .00323053/12-207
AWG 14.120.072.016 +/- .00323053/12-208
AWG 13.140.080.016 +/- .00323053/12-210
AWG 12.150.089.016 +/- .00323053/12-211
AWG 11.170.101.016 +/- .00323053/12-212
AWG 10.191.112.016 +/- .00323053/12-213
AWG 9.205.124.020 +/- .00423053/12-214
AWG 8.240.141.020 +/- .00423053/12-216
AWG 7.270.158.020 +/- .00423053/12-217
AWG 6.302.178.020 +/- .00423053/12-218
AWG 5.320.198.020 +/- .00423053/12-219
AWG 4.370.224.020 +/- .00423053/12-220
AWG 3.390.249.020 +/- .00423053/12-221
AWG 2.430.278.020 +/- .00423053/12-223
AWG 1.450.311.020 +/- .00423053/12-224
AWG 0.470.347.020 +/- .00423053/12-226

Specifications :

AMS-DTL-23053/12 CLASS 2
ASTM AD2902 TYPE I
AMS 3586

PTFE 2:1 AWG Heat Shrink • Thin Wall
AWG SizeExpanded IDRecovered IDWall ThicknessAMS-DTL-23053/12
AWG 30.034.015.009 +/- .00223053/12-301
AWG 28.038.018.009 +/- .00223053/12-302
AWG 26.046.022.010 +/- .00223053/12-303
AWG 24.050.027.010 +/- .00223053/12-304
AWG 22.055.032.012 +/- .00323053/12-305
AWG 20.060.039.012 +/- .00323053/12-306
AWG 19.065.043.012 +/- .00323053/12-307
AWG 18.076.049.012 +/- .00323053/12-308
AWG 17.085.054.012 +/- .00323053/12-309
AWG 16.093.061.012 +/- .00323053/12-310
AWG 15.110.067.012 +/- .00323053/12-311
AWG 14.120.072.012 +/- .00323053/12-312
AWG 13.140.080.012 +/- .00323053/12-313
AWG 12.150.089.012 +/- .00323053/12-314
AWG 11.170.101.012 +/- .00323053/12-316
AWG 10.191.112.012 +/- .00323053/12-317
AWG 9.205.124.015 +/- .00423053/12-318
AWG 8.240.141.015 +/- .00423053/12-320
AWG 7.270.158.015 +/- .00423053/12-321
AWG 6.302.178.015 +/- .00423053/12-322
AWG 5.320.198.015 +/- .00423053/12-323
AWG 4.370.224.015 +/- .00423053/12-324
AWG 3.390.249.015 +/- .00423053/12-325
AWG 2.430.278.015 +/- .00423053/12-327
AWG 1.450.311.015 +/- .00423053/12-328
AWG 0.470.347.015 +/- .00423053/12-330

Specifications :

AMS-DTL-23053/12 CLASS 3
ASTM D2902 TYPE I
AMS 3585

PTFE 2:1 AWG Heat Shrink • Light Wall
AWG SizeExpanded IDRecovered IDWall ThicknessAMS-DTL-23053/12
AWG 30.034.015.006 +/- .002
AWG 28.038.018.006 +/- .002
AWG 26.046.022.006 +/- .002
AWG 24.050.027.006 +/- .00223053/12-401
AWG 22.055.032.006 +/- .00223053/12-402
AWG 20.060.039.006 +/- .00223053/12-403
AWG 19.065.043.006 +/- .00223053/12-404
AWG 18.076.049.006 +/- .00223053/12-405
AWG 17.085.054.006 +/- .00223053/12-406
AWG 16.093.061.006 +/- .00223053/12-407
AWG 15.110.067.006 +/- .00223053/12-408
AWG 14.120.072.008 +/- .00223053/12-409
AWG 13.140.080.008 +/- .00223053/21-410
AWG 12.150.089.008 +/- .00223053/12-411
AWG 11.170.101.008 +/- .00223053/12-412
AWG 10.191.112.008 +/- .00223053/12-413
AWG 9.205.124.008 +/- .00223053/12-414
AWG 8.240.141.008 +/- .00223053/12-416
AWG 7.270.158.008 +/- .00223053/12-417
AWG 6.302.178.010 +/- .00323053/12-418
AWG 5.320.198.010 +/- .00323053/12-419
AWG 4.370.224.010 +/- .00323053/12-420
AWG 3.390.249.010 +/- .00323053/12-421
AWG 2.430.278.010 +/- .00323053/12-423
AWG 1.450.311.010 +/- .00323053/12-424
AWG 0.470.347.012 +/- .00323053/12-426

Specifications :

AMS-DTL-23053/12 CLASS 4
ASTM D2902 TYPE I

Side By Side Wall Comparison
AWG SizeStandard WallThin WallLight Wall
AWG 30.009 +/- .002.009 +/- .002.006 +/- .002
AWG 28.009 +/- .002.009 +/- .002.006 +/- .002
AWG 26.010 +/- .002.010 +/- .002.006 +/- .002
AWG 24.012 +/- .002.010 +/- .002.006 +/- .002
AWG 22.012 +/- .002.012 +/- .003.006 +/- .002
AWG 20.016 +/- .003.012 +/- .003.006 +/- .002
AWG 19.016 +/- .003.012 +/- .003.006 +/- .002
AWG 18.016 +/- .003.012 +/- .003.006 +/- .002
AWG 17.016 +/- .003.012 +/- .003.006 +/- .002
AWG 16.016 +/- .003.012 +/- .003.006 +/- .002
AWG 15.016 +/- .003.012 +/- .003.006 +/- .002
AWG 14.016 +/- .003.012 +/- .003.008 +/- .002
AWG 13.016 +/- .003.012 +/- .003.008 +/- .002
AWG 12.016 +/- .003.012 +/- .003.008 +/- .002
AWG 11.016 +/- .003.012 +/- .003.008 +/- .002
AWG 10.016 +/- .003.012 +/- .003.008 +/- .002
AWG 9.020 +/- .004.015 +/- .004.008 +/- .002
AWG 8.020 +/- .004.015 +/- .004.008 +/- .002
AWG 7.020 +/- .004.015 +/- .004.008 +/- .002
AWG 6.020 +/- .004.015 +/- .004.010 +/- .003
AWG 5.020 +/- .004.015 +/- .004.010 +/- .003
AWG 4.020 +/- .004.015 +/- .004.010 +/- .003
AWG 3.020 +/- .004.015 +/- .004.010 +/- .003
AWG 2.020 +/- .004.015 +/- .004.010 +/- .003
AWG 1.020 +/- .004.015 +/- .004.010 +/- .003
AWG 0.020 +/- .004.015 +/- .004.012 +/- .003

Specifications :

AMS-DTL-23053/12
ASTM D2902 TYPE I

Heat Shrink PTFE Specification :

Shrink Temperature : 624 º F

Service Temperature Range : -100 º F to 500 º F

Standard Lengths : 4 ft

Color : Translucent / Opaque white

PTFE 2:1 Heat Shrink Tubing is a shrinkable Fluoroplastic Sleeve that is commonly used on electrical wires for insulation and abrasion resistance while providing stress and strain relief for connections and joints in wire harnesses. Heat Shrink PTFE is highly versatile and a cost effective way increase your secondary insulation and protection.

Fluoropolymer Sleeving and Shrinkable Tubing is available in a variety of plastic compounds from the basic PVC and Polyolefin to the more expensive Fluoropolymers compounds such as PTFE, PFA and FEP. Each material has its strong point and proper selection of material should not always be made based upon cost. Electrical Properties, temperature rating and chemical compatibility should all be considered when choosing the proper size for your application. You should always try to select a tube that is in the middle of your shrink range. Selecting to high means that you have a lot of stress still built up in the material and selecting to low means that there is a possibility that the product might not shrink enough.

Polytetrafluoroethylene (PTFE) has the highest temperature rating of all the heat shrinkable tubing at a continuous 500°F. The biggest drawback is that the PTFE requires a minimum temperature of 625°F to begin the shrinking process. This includes the part that is being encapsulated. If the subsurface does not see the 625°F the PTFE will come in contact with the part but will not shrink completely. Lower temperature Fluoropolymers such as Fluorinated ethylene propylene (FEP) have a little lower temperature rating but shrink at a much lower and more controllable temperature. FEP has a continuous working temperature of 400°F but will start to shrink around 230°F which allows for encapsulation of sensitive glass or plastic parts. Both Fluoropolymers are chemically inert and may be used on all sorts of applications such as corrosive fluid handling and even medical applications such as coatings for catheters. PTFE tubing is known for its low coefficient of friction which makes it great for push-pull type applications that dominate the automotive industry.

High temperature wire splicing applications can benefit from an interesting match of PTFE and FEP tubing which when combined create a melt liner or adhesive liner. This meltable liner bonds to bare wires and creates an impenetrable water tight barrier between the elements and the splice.

When selecting a Heat Shrinkable PTFE tube for your application there are two other factors to consider, Shrink Ratio and Wall Thickness. PTFE Tubing can be developed in a extremely High Shrink ratio such as a 4:1, which is perfect for covering oddly shaped parts, or a standard 2:1 shrink ratio. Wall thicknesses are based off of the American Wire Gauge (AWG) and are set at Light Wall, Thin Wall and Standard Wall.

Shrinking Instructions :

PTFE Tubing is the most difficult of the fluoropolymers to shrink because of the extreme shrink temperature. The most reliable way to shrink PTFE is in a controlled oven environment. Shrinking can be accomplished with a heat gun or open flame but it is not recommended because of the tendency to overheat the area in a single area while the remainder of the material remains to cool to shrink.

Extreme caution must be exercised in heating the PTFE during the shrinking process. The PTFE Tubing must be heated evenly to the gel state to insure complete recovery. PTFE shrink tube will become completely clear when it reaches it gel state at about 624°F. After the material has reached its gel state do not continue to heat, the material is now ready to begin the cooling and shrinking phase. PTFE will start to recover once the cooling process has begun and the material comes out of its gel state. Once the material has completely cooled the PTFE’s appearance will be its normal milky white color.