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Teflon (PTFE) Heat Shrinkable Tubing

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Teflon® (PTFE) Heat Shrink Tubing

PTFE heat shrink tubing has a very high continuous use temperature (260°C), and outstanding chemical resistance. It is available in 2:1 and 4:1 shrink ratios, and meets or exceed the most stringent commercial (UL VW-1, UL 910, NFPA262) and military standards (AMS-DTL-23053/12).

While it is the best of the entire fluoropolymer heat shrink tubing family, PTFE is also the most difficult to shrink due to its extremely high shrinking temperature (325-340°C). A heat gun or a welding torch can be used, but it is not recommended due to the tendency for the material to have localized over-heating or under-heating. It is extremely important when shrinking PTFE that the material is uniformly heated to provide even shrinking. We recommend you use a controlled temperature oven; although this is obviously impractical for large harnesses or areas adjacent to temperature sensitive components.

Features of PTFE Heat shrink:

  • Continuous operating temperature -454°F to 500°F (-270°C to 260°C)
  • Outstanding resistance to almost any chemical known (exceptions: alkali metals in molten state, fluorine gas at high temperatures, chlorine trifluoride).
  • FDA and USP Class VI approved
  • Very low coefficient of friction
  • Good dielectric strength
  • Flame rating UL94 V0 and VW-1
  • Limiting Oxygen Index greater than 95
  • ETO and autoclave sterilizable
  • Mil spec approved (AMS-DTL-23052/12)

A few notes on shrinking PTFE:
1) Always assure good ventilation in the immediate work area prior to beginning the heat shrink process. Fumes may cause nausea and dizziness.
2) It is imperative that the tubing be heated uniformly until it becomes clear (gel state). This transition from crystalline to amorphous must take place, since shrinkage will only occur during recovery from the gel state (re-crystallizing).
3) When using a mandrel to shrink the tubing, it is important to pre-heat the mandrel to assure even and uniform shrinkage.
4) If the tubing begins to crack, chances are you overheated the material.
5) Also, higher shrink ratios will require higher shrink temperatures.

Pricing for 2:1 PTFE Heat Shrink Tubing

The 2:1 is available in four different wall thicknesses The product listed here is known as Standard Wall. For heavy wall (Class 1), Thin wall (Class 3) and very thin wall (Class 4), Please contact us

Please note: The Nominal size listed here for our 2:1 PTFE Heat shrink is the SIZE AFTER SHRINKING. Available in Natural. One week lead time, please call for Black.

     

    Mil Spec #

    Size
    Ordering Information
    AMS-DTL-23053

    Nominal
    Before Shrinking

    After shrinking

    Wall Thickness

    Price/4FT

    		 Add to Cart
    /12-215

    1/8"

    0.215"
    0.130"
    0.020"
    $10.32
    /12-221

    1/4"

    0.390"
    0.249"
    0.020"
    $15.76
    /12-225

    5/16"
    0.470"
    0.329"
    0.020
    $18.80
    /12-228

    3/8"

    0.560"
    0.399"
    0.025"
    $31.84
    /12-229

    7/16"

    0.655"
    0.462"
    0.025"
    $34.88
    /12-230

    1/2"

    0.750"
    0.524"
    0.025"
    $39.52
    /12-231

    5/8"

    0.930"
    0.655"
    0.030"
    $56.80
    /12-232

    3/4"

    1.125"
    0.786"
    0.035"
    $76.16
    /12-233
    7/8"
    1.310"
    0.911"
    0.035"
    $94.96
    /12-234
    1"
    1.500"
    1.036"
    0.035"
    $109.20

*Also available in precut pieces. Please inquire

For other sizes not listed here, please contact us

 

Pricing for 4:1 PTFE heat shrink tubing

Available in Clear, Black. One week lead time for both. Please note Black tubing is higher than clear tubing. Provided in 4 foot lengths. For longer continuous lengths, please contact us

     

    Mil Spec #

    Size

    Ordering Information
    AMS-DTL-23053
    Before shrinking
    After shrinking

    Price/4FT

    		 Add to Cart

    Nominal
    ID Min

    ID Max
    Wall Thickness
    /12-501

    5/64"

    0.078"
    0.025"
    .009"
    $3.96
    Select Color:
    /12-502

    1/8"

    .125"
    0.037"
    .012"
    $3.52
    Select Color:
    /12-503

    3/16"

    0.187"
    0.050"
    0.012"
    $3.98
    Select Color:
    /12-504

    1/4"

    0.250"
    0.063"
    0.012"
    $4.40
    Select Color:
    /12-505

    5/16"

    0.312"
    0.078"
    0.012"
    $12
    Select Color:
    /12-506

    3/8"

    0.375"
    0.096"
    0.012"
    $5.80
    Select Color:
    /12-507

    7/16"
    0.438"
    0.112"
    0.012"
    $13.40
    Select Color:
    /12-508

    1/2"

    0.500"
    0.144"
    0.015"
    $7.20
    Select Color:
    /12-509
    9/16"
    0.562"
    0.155"
    0.015"
    $
    /12-510
    5/8"
    0.625"
    0.178"
    0.015"
    $10.90
    Select Color:
    /12-511
    11/16"
    0.687"
    0.198"
    0.015"
    $
    :
    /12-512
    3/4"
    0.750"
    0.224"
    0.015"
    $14.50
    Select Color:
    /12-513
    7/8"
    0.875"
    0.244"
    0.015"
    $26.00
    Select Color:
    /12-514
    1"
    1.00"
    0.278"
    0.015"
    $17.00
    Select Color:
    /12-516
    1-1/2"
    1.50"
    .400
    0.015"
    $26
    Select Color:

*Also available in precut pieces. Please inquire

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VT-1100 with 2 Air Speeds, and a temp. control dial for range of 250°F - 1100°F

$35

 

Micro Therm MJ-600 - Pocket sized cordless refillable butane heat source. Great alternative to electric heat guns. Waterproof piezo electronic ignition, safety lock trigger, and a reflector shield for use with heat shrink.

$25

 

 

 

 

 

 

 

 

 

Heat Guns

VT-1100 with 2 Air Speeds, and a temp. control dial for range of 250°F - 1100°F

$35

 

Micro Therm MJ-600 - Pocket sized cordless refillable butane heat source. Great alternative to electric heat guns. Waterproof piezo electronic ignition, safety lock trigger, and a reflector shield for use with heat shrink.

$25

 

 

 

 

 

 
   
 

Military Specification (M23053) and Manufacturers' Cross Reference List

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