Shrink-N-Shield® (2:1) EMI Shielded Heat Shrink Tubing

Shrink-N-Shield® (2:1) is a MIL-SPEC, heat-shrink tubing with a 2:1 shrink ratio that provides exceptional shielding from EMI, RFI and EMF.

Drawing Number(s): ZT99-18-006, ZT15-18-001

Shrink-N-Shield® (2:1) EMI Shielded Heat Shrink Tubing
UL Recognized RoHS Military Grade

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Selected Part Number:ZT99-18-006-1.0-B-X48.0
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Shrink-N-Shield Infographic
  • EMI shielding solution for smaller wire or cable diameters
  • MIL-SPEC tubing offers excellent fluid and fungus resistance
  • Comes in two standard shielding cloths: Z-3250 and Z-7200

Shrink-N-Shield® (2:1) is an EMI-shielding, MIL-SPEC heat-shrink tubing that has a 2:1 shrink ratio and can be cut to length. The flexible, flame-retardant and self-extinguishing polyolefin sleeve can withstand temperatures up to 275°F (135°C). Additionally, the jacketing has excellent fluid and fungus resistance. The polyolefin tubing also meets MIL-DTL-23053/5C specifications for applications with such requirements.

There are two standard shielding cloths available for Shrink-N-Shield® (2:1): Z-3250 and Z-7200. However, other EMI-shielding cloths are available upon request.

The Z-3250 shielding cloth is made of a taffeta fabric that is plated with copper and then nickel for excellent corrosion protection. The lightweight, flexible shielding cloth will not flake or deteriorate over time, so you can be confident your components will have long-lasting protection against EMI, RFI and EMF.

The Z-7200 shielding cloth is made of a copper-plated nylon ripstop fabric and a proprietary corrosion- and fray-resistant coating. The halogen-free, nickel-free, and hypoallergenic cloth is ideal for applications that have such requirements. The Z-7200 cloth is the perfect choice for applications dealing with sensitive magnetic instrumentation.

Shrink-N-Shield® (2:1) is offered in diameters from 0.1875” to 1.5,” with custom sizes available upon request. Shrink-N-Shield® (2:1) has an operational temperature range of -67°F to 275°F (-55°C to 135°C).

If you require a 3:1 or 4:1 shrink ratio, Zippertubing® offers Shrink-N-Shield® (3:1) and Shrink-N-Shield® (4:1). If you have components with diameters as small as 0.015”, Shrink-N-Shield® (Nano) is also available for your EMI-shielding heat-shrink needs.

If your application is more suited to a wrap-around heat shrink for ease of installation, PRT® (S-3250) and PRT® (S-7200) are the solutions. Both standard products offer EMI shielding and can easily wrap around your wires or cables, rather than having to pull them through. If required, other EMI-shielding fabrics are available for PRT® upon request.

Class III polyolefin heat-shrink tubing is available upon request.

Q:  What lengths of Shrink-N-Shield
are available?

A:  Shrink-N-Shield is typically provided in the industry standard 4 ft. long “sticks” of tubing.  However, Zippertubing can provide pre-cut pieces of this material if required.

Q:  My harness is longer than 4 feet, can I still use this product?

A:  Sections of Shrink-N-Shield can be spliced together to create a longer EMI shield.  Reference our installation
guide
for instructions on how to do this, or speak with one of our design engineers for recommendations on covering longer cables.

Q:  What do the 2:1, 3:1, 4:1 variations mean?

A:  These shrink ratios refer to how much the material will change in size when heat is applied.  To learn more, please refer to this article: Understanding Shrink Ratios of Heat Shrinkable Tubing

Q:  What diameter of tubing do I need? 

A:  Shrink-N-Shield products are identified by their starting diameter, before recovery or shrinking.  It is recommended to choose a size that will result in a diameter equal to, or slightly smaller than, the cable it is covering to achieve a snug fit.  For assistance with sizing, you can also contact one of our design engineers.

Q:  How should I ground or terminate the ends of this tubing?

A:  There are many different ways to terminate and ground Shrink-N-Shield.  The Shrink-N-Shield installation guide outlines the three most common ways to ground the EMI shield including a wrapped drain wire, bonded grounding lead, and connector termination. 

Q:  My installed tubing has small wrinkles and ridges in it, is this normal?

A:  Yes.  As the tubing shrinks, the EMI shield material may gather more in certain areas than others.  This is normal and does not affect the shielding performance of the tubing.  If these cosmetic imperfections are an issue we recommend trying a smaller size of tubing. 

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Overall Performance

  • Diameter - Before Shrink: 0.125" (1/8)
  • Material: Polyolefin
  • Flammability: UL224, All Tubing
  • Heat Shrink Material: Polyolefin Heat Shrink
  • Maximum Operating Temperature: 275°F
  • Minimum Operating Temperature: -67°F
  • RoHS: RoHS-10
  • Shelf-Life: 60 months
  • Shield Bonding: Nitrile Adhesive
  • Shielding: Z-3250
  • Shielding Material: Copper Plated
  • Shrink Ratio: 2:1

Polyolefin

  • 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)
  • Material: Cross-linked Polyolefin
  • 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
  • Outgasssing (%TML): Min 0.2 | Max 0.93%
  • Outgassing (%CVCM): Min 0.02 | Max 0.13%
  • Outgassing (%WVR): Min 0.01 | Max 0.16%

Z-3250

    Z-7200

      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.
      PRT® (1553-135) Water-Blocking Wrap-Around Heat Shrink  Shrink-N-Shield® (3:1) EMI Shielded Heat Shrink Tubing  Shrink-N-Shield® (Nano) EMI Shielded Heat Shrink Tubing
      NAME PRT® (1553-135) WATER-BLOCKING WRAP-AROUND HEAT SHRINK  SHRINK-N-SHIELD® (3:1) EMI SHIELDED HEAT SHRINK TUBING  SHRINK-N-SHIELD® (NANO) EMI SHIELDED HEAT SHRINK TUBING
      DESCRIPTION A wrap-around, MIL-SPEC heat shrink paired with a high-temperature, water-blocking adhesive that comes equipped with the Z-3250-Tape™ for shielding against EMI.  A heat-shrink tubing that provides exceptional shielding from EMI, RFI and EMF.  A 1/8" (0.125") diameter (before shrink) EMI shielding heat shrink that is engineered for wires as small as 0.031" in diameter.
      Closure Tape (Specialty Surface)    
      RoHS RoHS-10  RoHS-10  RoHS-10
      Abrasion Resistance Best  Best  Best
      Installation Type Wrap-Around  Pull-Through  Pull-Through
      Purpose Water Blocking  Small Diameters  Small Diameters
      Min Temperature Extreme  Extreme  Extreme
      Minimum Operating Temperature -67°F  -67°F  -67°F
      Max Temperature Moderate  Moderate  Moderate
      Maximum Operating Temperature 275°F  275°F  275°F
      Flexibility    
      View  View  View
      Zippertubing
      Shrink-N-Shield Infographic

      Shrink-N-Shield® (2:1) EMI Shielded Heat Shrink Tubing

      Shrink-N-Shield® (2:1) is a MIL-SPEC, heat-shrink tubing with a 2:1 shrink ratio that provides exceptional shielding from EMI, RFI and EMF.

      Drawing Number(s): ZT99-18-006, ZT15-18-001

      Selected Part Number: ZT99-18-006-1.0-B-X48.0

    • EMI shielding solution for smaller wire or cable diameters
    • MIL-SPEC tubing offers excellent fluid and fungus resistance
    • Comes in two standard shielding cloths: Z-3250 and Z-7200
    • Military
      Shrink-N- Shield EMI Shielding
      Shrink-N-Shield EMI shielding shrink tubing
      Shrink-N-Shield® (2:1) Shielding Options
      Shrink-N-Shield EMI RFI shielding

      Features

    • 2:1 shrink ratio for versatile application requirements
    • Flame-retardant and self-extinguishing MIL-SPEC jacketing
    • Operational temperature range of -40°F to 275°F (-40°C to 135°C)
    • Benefits

    • One-step installation for less downtime and total installation costs
    • Excellent high-frequency EMI shielding for components
    • Can be used as secondary jacketing for protection of wires or cables
    • Shrink-N-Shield® (2:1) EMI Shielded Heat Shrink Tubing

      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.

      SHIELDING EFFECTIVENESS - Z-3250, Z-7200

      ATTENUATION DATA WAS OBTAINED USING MIL-DTL-83528H (MODIFIED). TESTING WAS PERFORMED BY ACCREDITED, THIRD-PARTY EMI LABORATORIES.

      Shrink-N-Shield® (2:1) EMI Shielded Heat Shrink Tubing

      MATERIAL SPECIFICATIONS

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