A wrap-around heat shrink made from MIL-SPEC tubing that repairs electrical systems and assembled components and is resistant to abrasion and chemicals.
  • Never disconnect or pull through another wire or cable again
  • Excellent anti abrasive, environmental, chemical, and electrical properties with resistance to most oils and fluids, mild acids, and alkalis
  • Many PRT® sizing variations also offer National Stock Numbers (NSN)

PRT® allows repair and re-jacketing of damaged components without disassembly.

PRT® is made from a MIL-SPEC tubing, that is flame-retardant, RoHS, UL-rated, wrap-around heat-shrink that provides a means of repairing in-service wires or cables damaged from chafing. It can also be used as a secondary protection installation for applications that require additional protection.

The best part of the PRT® line of products is that you’ll never again need to remove or disassemble your connectors or end hardware to install.

Once installed, the PRT® wrap-around solution is very similar to conventional heat-shrink tubing, as it is shrunk using a heat gun. The major difference is that it is a wrap-around solution that can be cut specifically to your repair length and offers itself as an in-service repair tool for both indoor and outdoor applications. While many military branches use this product, it can also be used as a reliable solution in virtually any other industry, including the automotive and aerospace industries, and is suitable for both industrial and commercial uses.

PRT® has passed all short-term submersion tests and holds up to the harshest fluids, including jet fuel, Skydrol, and many others. This product has been used in the field by the military since 1998 and is still used today as the top-choice product to repair and protect many sizes of wires and cables.

A heat gun is used to re-cover the material in a fashion similar to standard, non-split, heat-shrinkable tubing. This material has an operational temperature range of -55° to 135°C (-67° to 275°F).


  • Made from MIL-SPEC tubing that is flame-retardant
  • Available in six color options and 16 diameter range sizes
  • Built for rugged environmental conditions where traditional heat shrink won’t last


  • Handles up to 17,500 volts and is resistant to harsh fluids
  • Repair and re-jacket components without disassembly
  • Operational temperature range of -67°F to 275°F (-55°C to 135°C)
  WARNING: Cancer and Reproductive Harm  |


Flammability UL224, VW-1, Self-extinguishing
RoHS Compliant
Shelf Life 24 months
Minimum Operating Temperature -67 ° F (-55 ° C )
Maximum Operating Temperature 275 ° F (135 ° C )

Available Attributes

Shape of Installation Round
Exterior Material Polyolefin Heat Shrink
Closure Adhesive
Cable Diameter - After Shrinkage 0.090" - 0.124" (#0)
0.125" - 0.187" (#1)
0.188" - 0.249" (#2)
0.25" - 0.37" (#3)
0.38" - 0.49" (#4)
0.50" - 0.62" (#5)
0.63" - 0.74" (#6)
0.75" - 0.87" (#7)
0.88" - 0.99" (#8)
1.0" - 1.12" (#9)
1.13" - 1.24" (#10)
1.25" - 1.37" (#11)
1.38" - 1.49" (#12)
1.50" - 1.62" (#13)
1.63" - 1.74" (#14)
1.75" - 1.87" (#15)
Unit Length 50 ft. Roll
Material Color Black


Tape (Specialty Surface)
Adhesion (72 hr) 140 oz-in. (to steel) 136 oz-in. (to Polyproylene)
Adhesive Acrylic (fiber reinforced)
Humidity Resistance Excellent
Release Liner Polycoated Paper Liner
Shear Strength >200 grams @ 200 C (1/2" overlap)
RoHS Compliant
Temperature -40° to +93°C Days/Weeks 149°C Minutes/Hours
Shelf Life 12 months, unbonded (Zippertubing)
Color Clear
Material Thickness 0.005"

Specific Gravity 1.35 (max.)
Flammability UL224, VW-1, Self-extinguishing
Dielectric Strength 500v/mil (after shrink)
Fluid Resistance Best
Mil-Spec SAE-AMS-DTL-23053/5
Fungicide No Growth
Longitudinal Shrinkage +/-5% (after heat recovery)
RoHS Compliant
Abrasion Resistance Best
Elongation 200% (after shrink)
Material Thickness 0.035" - 0.055"
Minimum Operating Temperature -67 ° F (-55 ° C )
Maximum Operating Temperature 275 ° F (135 ° C )
Tensile Strength 1500 psi. (after shrink)
Flexibility Better