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FEP/PTFE Dual Shrink Heat Shrinkable Tubing

Standard Wall Pricing Lightweight Wall Pricing
 

FEP/PTFE Dual Wall Heat Shrink Tubing

PTFE heat shrink tubing has a very high continuous use temperature (260°C), and outstanding chemical resistance. Combining this with a lower melt temperature material (FEP) on the inside makes the only high temperature adhesive lined heat shrink tubing on the market. It is available in 2:1 shrink ratio, and meets or exceeds 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 FEP/PTFE Dual Wall Heat Shrink Tubing

Lead time 2-3 weeks

Standard Wall

    Size
    Ordering Information

    Nominal
    Before Shrinking

    After shrinking

    Wall Thickness

    Price/4FT

    		 Add to Cart

    1/32"
    0.036"
    *0.036*
    0.023"
    $30

    1/16"
    0.060"
    *0.060*
    0.028"
    $35

    1/8"
    0.130"
    *0.130*
    0.032"
    $35

    5/32"
    0.160
    *0.160*
    0.032"
    $35

    3/16"
    0.190
    0.062"
    0.035"
    $28

    1/4"
    0.250"
    0.125"
    0.035"
    $32

    3/8"
    0.350"
    0.190"
    0.035"
    $38

    1/2"
    0.450"
    0.312"
    0.055"
    $80
    3/4"
    0.700"
    0.440"
    0.055"
    $120
    1"
    0.950"
    0.630"
    0.065"
    $200

 

Lightweight Wall

Lead time 2-3 weeks

Size
Ordering Information

Nominal
Before Shrinking

After shrinking

Wall Thickness

Price/4FT

 Add to Cart

1/16"
0.065"
*0.065*
0.015"
$12

7/64"
0.115"
0.045"
0.015"
$16

1/8"
0.130"
0.060"
0.015"
$19

11/64"
0.180
0.065"
0.015"
$21

3/16"
0.190"
0.070"
0.015"
$30

1/4"
0.240"
0.150"
0.020"
$40

3/8"
0.350"
0.210"
0.025"
$50

1/2"
0.480"
0.315"
0.032"
$72
3/4"
0.700"
0.500"
0.040"
$140
1"
1.000"
0.700"
0.045"
$220


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Heat Guns

 

The Blazer Products Hot Shot MT-3000 is an extremely versatile micro torch, featuring a 2500°F wind resistant blue flame, push button piezo electric ignition, and a simple dial at the top for easy flame adjustment, and precise flame control. Flat bottom and lock switch allow for table top hands free use. Burn time approx 35 minutes, with an adjustable flame length of 3/4" to 4"..

$29

 

 

The Blazer Products Hot Shot MT-3000 is an extremely versatile micro torch, featuring a 2500°F wind resistant blue flame, push button piezo electric ignition, and a simple dial at the top for easy flame adjustment, and precise flame control. Flat bottom and lock switch allow for table top hands free use. Burn time approx 35 minutes, with an adjustable flame length of 3/4" to 4"..

$29

 

 
   
 

Military Specification (M23053) and Manufacturers' Cross Reference List

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