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Fluorinated
Ethylene Propylene (FEP) Heat Shrink Tubing
Fluorinated Ethylene Propylene (FEP) heat shrink tubing
is a widely used, lower cost alternative to PTFE
(Teflon). FEP is sometimes called Teflon (even though that is the
wrong name for it). FEP has similar dielectric and frictional properties
to PTFE. Although PTFE has superior chemical resistance to FEP,
FEP can be used in most applications suited for PTFE. The major
difference between the two materials is the continuous use temperature.
FEP heat shrinkable tubing is suitable for continuous use at temperatures
up to 204°C. FEP heat shrink conforms to Mil-I-23053/11, and
UL 94 (V0, VW-1).
Another advantage FEP has over PTFE is its much lower shrink temperature.
While PTFE needs a temperature of over 300°C to shrink it, FEP
heat shrink can shrink as low as 190°C. This can be a significant
advantage when used in conjunction with temperature sensitive components.
FEP is available in 1.6:1 and 1.3:1 shrink ratios.
- Continuous operating temperature 400°F (204°C)
- Outstanding chemical resistance is extreme environments.
- FDA and USP Class VI approved
- Lower gas permeability than PTFE
- Increased translucence compared to PTFE
- Excellent transmission of UV rays
- Excellent electrical insulation values
- Flame Rating: UL94 V0 and VW-1
- Limiting
Oxygen index (LOI): greater than 95
- Gamma, ETP, e-beam and autoclave sterilizable
- Mil Spec approved (AMS-DTL-23053/11)
Notes on shrinking FEP:
1) As with all fluoropolymers, it is extremely important to make
sure that adequate ventilation in the immediate work area is provided
PRIOR to beginning the heat shrink process. This cannot be an afterthought,
since fumes can cause nausea and dizziness, especially if flames
are being used.
2) Only a small degree of recovery is necessary in the shrinking
process; however, you may experience a longitudinal (lengthwise)
change of up to 10%.
3) As with PTFE, mandrels can act as “heat-sinks”, causing
the material to rapidly transition back to the crystalline phase
before it gets a chance to shrink. We therefore recommend pre-heating
larger diameter mandrels.
4) Slow, even heating of the entire tube is highly recommended to
insure uniform shrinkage, and the desired results.
5) If the tubing begins to crack, chances are you overheated the
material.
6) Also, higher shrink ratios will require higher shrink temperatures.
Pricing
for 1.3:1 FEP Heat Shrink Tubing
Available in Natural. One week lead time, please call for Black.
Please
note: The Nominal size listed here for our 1.3:1 FEP Heat shrink
is the SIZE AFTER SHRINKING.
View
Dimensions, Mil spec part numbers and Technical Specifications
Mil Spec # |
Size |
Ordering
Information |
AMS-DTL-23053/11- |
Before shrinking |
After shrinking |
Price/4FT |
Add
to Cart |
Nominal |
ID
Min |
ID Max |
Wall
Thickness |
101-C |
24 AWG |
0.031" |
0.027" |
0.008" |
$2.75 |
|
102-C |
22 AWG |
0.036" |
0.032" |
0.008" |
$2.90 |
|
103-C |
20 AWG |
0.045" |
0.039" |
0.008" |
$3.00 |
|
104-C |
18 AWG |
0.060" |
0.049" |
0.008" |
$3.10 |
|
105-C |
16 AWG |
0.075" |
0.061" |
0.009" |
$3.20 |
|
106-C |
14 AWG |
0.092" |
0.072" |
0.009" |
$3.25 |
|
107-C |
12 AWG |
0.115" |
0.089" |
0.009" |
$3.30 |
|
108-C |
10 AWG |
0.141" |
0.114" |
0.010" |
$3.60 |
|
109-C |
9 AWG |
0.158" |
0.124" |
0.010" |
$5.15 |
|
110-C |
8 AWG |
0.180" |
0.143" |
0.010" |
$5.40 |
|
111-C |
7 AWG |
0.197" |
0.158" |
0.11" |
$6.05 |
|
112-C |
6 AWG |
0.225" |
0.180" |
0.011" |
$6.30 |
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113-C |
5 AWG |
0.248" |
0.198" |
0.011" |
$6.60 |
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114-C |
4 AWG |
0.290" |
0.226" |
0.011" |
$6.98 |
|
115-C |
3 AWG |
0.310" |
0.249" |
0.011" |
$8.13 |
|
116-C |
2 AWG |
0.365" |
0.280" |
0.012" |
$8.70 |
|
117-C |
1 AWG |
0.400" |
0.311" |
0.012" |
$9.50 |
|
118-C |
0 AWG |
0.440" |
0.349" |
0.012" |
$10.50 |
|
119-C |
3/8" |
0.500" |
0.383" |
0.015" |
$14.50 |
|
120-C |
7/16" |
0.580" |
0.448" |
0.020 |
$22.40 |
|
121-C |
1/2" |
0.666" |
0.510" |
0.020" |
$25.00 |
|
122-C |
5/8" |
0.830" |
0.637" |
0.025" |
$36.75 |
|
123-C |
3/4" |
1.000" |
0.764" |
0.030" |
$42.25 |
|
124-C |
7/8" |
1.170" |
0.891" |
0.035" |
$55.55 |
|
126-C |
1" |
1.330" |
1.020" |
0.035" |
$60.50 |
|
127-C |
1-1/8" |
1.500" |
1.145" |
0.035" |
$92 |
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*Also available in precut pieces. Please inquire
For other sizes not listed here, please contact
us
Pricing
for 1.6:1 FEP heat shrink tubing
Available
in Natural. One week lead time, please call for Black. Provided
in 4 foot lengths.
For
longer continuous lengths or precut pieces, please contact
us
*Also available in precut pieces. Please inquire
Other
Items
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Heat
Guns
VT-1100
with 2 Air Speeds, and a temp. control dial for range of 250°F
- 1100°F

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

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.
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