PRT® (S-3250)

A wrap-around heat shrink made from MIL-SPEC tubing with an EMI shielding cloth adhered on the inside to provide protection against EMI, RFI, and EMF.

Drawing Number(s): ZT98-04-017, ZT04-04-004

PRT® (S-3250)
RoHS Military Grade

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Selected Part Number:ZT98-04-017-0-B-X600.0
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PRT® (S-3250)
  • 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
  • The PRT® (S-3250) EMI shielding material offers better shielding effectiveness of 65 db from 10MHz to 10GHz

PRT® (S-3250) is a wrap-around, MIL-SPEC polyolefin heat shrink tubing paired with our Z-3250 shielding cloth. The heat shrink is flame retardant, abrasion resistant, chemical resistant and fluid resistant, including resistance to jet fuel and Skydrol. The polyolefin tubing is RoHS compliant and UL-rated for flammability, meeting UL224, VW-1.

The Z-3250 shielding cloth offers exceptional EMI shielding performance. The shielding fabric is made of a nickel over copper-plated polyester taffeta cloth. The Z-3250 is flexible, yet very strong and provides excellent corrosion and environmental degradation resistance. PRT® (S-3250) can also be equipped with a 15 AWG braided wire for grounded applications.

PRT® (S-3250) can be cut to any desired length for versatility in applications. PRT® (S-3250) also only requires a standard heat gun for installation. PRT® (S-3250) is perfect for any industry, including the automotive and aerospace industries due to the high temperature range, resistance to abrasion, chemicals and fluids, and exceptional EMI shielding performance.

PRT® (S-3250) is offered in size ranges for diameters from 0.09” to 1.87”, as well as custom diameters upon request. The operational temperature range is -67°F to 275°F (-55°C to 135°C).


Product Data

Diameter - After Shrink
0.090" - 0.124" (#0) 0.38" - 0.49" (#4) 0.88" - 0.99" (#8) 1.38" - 1.49" (#12)
0.125" - 0.187" (#1) 0.50" - 0.62" (#5) 1.0" - 1.12" (#9) 1.50" - 1.62" (#13)
0.188" - 0.249" (#2) 0.63" - 0.74" (#6) 1.13" - 1.24" (#10) 1.63" - 1.74" (#14)
0.25" - 0.37" (#3) 0.75" - 0.87" (#7) 1.25" - 1.37" (#11) 1.75" - 1.87" (#15)


Overall Performance

  • Cable Diameter After Shrinkage: 0.090" - 0.124" (#0)
  • Closure: Tape (Specialty Surface)
  • Material: Polyolefin
  • Heat Shrink Material: Cross-Linked Polyolefin
  • Maximum Operating Temperature: 249°F
  • Minimum Operating Temperature: -67°F
  • RoHS: RoHS-10
  • Shelf-Life: 24 months
  • Shielding: Z-3250
  • Shielding Material: Nickel Plated Copper
  • Shrink Ratio: 2:1


  • Mil-Spec: SAE-AMS-DTL-23053/5
  • REACH: Compliant
  • Dielectric Strength: 500 volt/mil
  • Elongation: 200% (after shrink)
  • Flammability: UL224, VW-1, Self-extinguishing
  • Fungicide: No Growth
  • Longitudinal Shrinkage: +/-5% (after heat recovery)
  • Thickness: 0.035" - 0.055"
  • Maximum Operating Temperature: 275°F
  • Minimum Operating Temperature: -67°F
  • RoHS: RoHS-10
  • Shelf Life: 60 Months
  • Shrink Ratio: 2:1, 3:1 or 4:1
  • Tensile Strength: 1500 psi. (after shrink)
  • Specific Gravity: 1.35 (max.)

Tape (Specialty Surface)

  • Shear Strength: >200 grams @ 200 C (1/2" overlap)
  • REACH: Compliant
  • Release Liner: Polycoated Paper Liner
  • Humidity Resistance: Excellent
  • Adhesion: 140 oz-in. (to steel) 136 oz-in. (to Polyproylene)
  • Chemical Resistance: Good
  • Flame Retardant: Fire Retardant
  • Material: Acrylic
  • Thickness: 0.005"
  • Maximum Operating Temperature: 199°F
  • Minimum Operating Temperature: -40°F
  • RoHS: RoHS-10
  • Shelf Life: 12 months, unbonded


  • Base Fabric: Polyester Taffeta Fabric
  • Surface Resistivity: <0.1 ohms/sq
  • REACH: Compliant
  • Elongation: 27%
  • Material: Cloth
  • Thickness: 0.004"
  • Maximum Operating Temperature: 250°F
  • Minimum Operating Temperature: -40°F
  • RoHS: RoHS-10
  • Shelf Life: 60 Months
  • Shielding: Z-3250
  • Tensile Strength: 74-79 lbs/in


15 AWG Braided Ground Straps

  • Circular Mil Area: 3,000
  • Global Gauge: 15 AWG
  • Construction: 24 Carrier / 120 Ends
  • Current Capacity: 25 AMPS
  • REACH: Compliant
  • Thickness: 0.020"
  • Thickness Variance: +/- 0.002"
  • RoHS: RoHS-10
  • Width: 0.188" +/- 10%
Specifications subject to change without notice. All statements and technical information contained herein are based on tests we believe to be reliable, but the accuracy or completeness is not guaranteed under all circumstances. Before using Zippertubing® products, the user shall determine suitability for the intended use, and user assumes all responsibility for improper selection. Published attenuation values of Zippertubing® shielding have been verified by laboratory testing of the respective shielding materials. Actual installed attenuation values may differ due to installation techniques and final assembly operation parameters which are beyond the control of Zippertubing®. Actual attenuation values can only be determined by the end user testing the completed assembly. U.S. and International Patents and patents pending. © The Zippertubing® Company, Chandler, Arizona.

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Closure Tape (Electrically Conductive) Adhesive Adhesive
RoHS RoHS-10 RoHS-10 RoHS-10
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Purpose Tape Sleeve Sleeve
Min Temperature Moderate Moderate Extreme
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Max Temperature Moderate Low Low
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