PTFE Heat Shrink Tubing 4:1 • Fractional
PTFE 4:1 Fractional Heat Shrink Tubing is a high temperature Fluoropolymer that has the highest shrink ratio available among the Fluoropolymer’s. Heat Shrink PTFE Tubing offers the ultimate performance with the highest continuous working temperature. 4:1 Heat Shrink PTFE is designed for applications where hose or pipe fittings cannot be removed in order to apply the Teflon sleeve. Being able to slip the tubing over odd shaped fittings and nuts allow for quick install of a protective PTFE sleeve over machine parts without having to break down an entire system. PTFE Tubing is chemically resistant to all common solvents and acids, and has a high dielectric strength over a broad temperature range. PTFE Tubing can be sterilized chemically and is autoclavable. In addition to the many chemical and corrosive properties found in PTFE, the Thin Wall of Heat Shrink PTFE 4:1 promotes quick installation while keeping the covered tubing flexible.
PTFE 4:1 Fractional Heat Shrink Tubing’s applications include insulating, terminating, moisture sealing, splicing, and wire bundling. Colored Heat Shrink PTFE tubing can also be a great visual for coding wires. See the Data Sheet for a summary of Heat Shrinkable PTFE Tubing & its properties.
Excellent Dielectric Insulation Properties
Temperature range up to 500°F
Lowest coefficient of friction
Shrinks at 625°F
Reduces Friction

PTFE 4:1 Fractional Heat Shrink Tubing
Size | Expanded ID | Recovered ID | Wall Thickness | AMS-DTL-23053/12 |
---|---|---|---|---|
5/64 | .078 | .025 | .009 +/- .002 | 23053/12-501 |
1/8 | .125 | .037 | .012 +/- .002 | 23053/12-502 |
3/16 | .187 | .050 | .012 +/- .002 | 23053/12-503 |
1/4 | .250 | .063 | .012 +/- .002 | 23053/12-504 |
5/16 | .312 | .078 | .012 +/- .002 | 23053/12-505 |
3/8 | .375 | .096 | .012 +/- .002 | 23053/12-506 |
7/16 | .438 | .112 | .012 +/- .002 | 23053/12-507 |
1/2 | .500 | .144 | .015 +/- .004 | 23053/12-508 |
9/16 | .562 | .155 | .015 +/- .004 | 23053/12-509 |
5/8 | .625 | .178 | .015 +/- .004 | 23053/12-510 |
11/16 | .687 | .198 | .015 +/- .004 | 23053/12-511 |
3/4 | .750 | .224 | .015 +/- .004 | 23053/12-512 |
7/8 | .875 | .244 | .015 +/- .004 | 23053/12-513 |
1 | 1.000 | .278 | .015 +/- .004 | 23053/12-514 |
1 1/4 | 1.250 | .347 | .015 +/- .004 | 23053/12-515 |
1 1/2 | 1.500 | .400 | .015 +/- .004 | 23053/12-516 |
1 3/4 | 1.750 | .450 | .015 +/- .004 | 23053/12-517 |
2 | 2.000 | .520 | .020 +/- .005 | 23053/12-518 |
2 1/4 | 2.250 | .585 | .020 +/- .005 | 23053/12-519 |
2 1/2 | 2.500 | .650 | .020 +/- .005 | 23053/12-520 |
2 3/4 | 2.750 | .710 | .020 +/- .005 | 23053/12-521 |
3 | 3.000 | .775 | .020 +/- .005 | 23053/12-522 |
3 1/4 | 3.250 | .835 | .020 +/- .005 | 23053/12-523 |
3 1/2 | 3.500 | .900 | .025 +/- .005 | 23053/12-524 |
3 3/4 | 3.750 | .960 | .025 +/-.005 | 23053/12-525 |
4 | 4.000 | 1.025 | .025 +/- .005 | 23053/12-526 |
* Max Diameter to be covered should not exceed 75 % of the expanded ID.
Heat Shrink PTFE • Material Specifications
Mil Specifications : AMS-DTL-23053/12 CLASS 5
Shrink Temperature: 621°F
Temperature Range: -100 to 500°F
Standard Lengths: 4 ft and (coils available )
Color : Translucent to Opaque / Milky White
Multi Functional High Temperature Heat Shrink Tubing
Tef-Cap Industries offers durable multi functional high temperature heat shrink tubing. With diameters ranging from 5/64″ to 4″ we produce and stock PTFE Heat Shrink Tubing 4:1 in put ups of both 4 ft lengths or coils. Our products are manufactured to provide ultimate protection against heat, moisture, shock and other harsh environment conditions, ensuring longevity and efficient performance. Contact us for more information.
Recovery Temperature
Specification | FEP | PTFE | Dual Wall PTFE/FEP | PEEK |
---|---|---|---|---|
Expanded ID < 1.00" | 410°F +/- 10° | 662°F +/- 8° for 10 minutes | 625°F | 650°F |
Expanded ID > 1.00" | 430°F +/- 10° | 662°F +/- 8° for 10 minutes | 625°F | 650°F |
Mil Spec | 23053/11 | 23053/12 | N/A | N/A |