Shrink-N-Shield® (TW) Flexible EMI Shielded Tubing

A flexible, flame-retardant, thin wall polyolefin heat shrink and EMI shielding solution that features a 2:1 shrink ratio and the Z-3250-CN shielding cloth.

Drawing Number(s): ZT02-18-003

Shrink-N-Shield® (TW) Flexible EMI Shielded Tubing
RoHS

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Selected Part Number:ZT02-18-003-0.1875-B-X48.0
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Shrink-N-Shield Infographic
  • Thin wall polyolefin is ideal for applications where space and weight is limited
  • UL-rated meeting UL 224, VW-1
  • Combines EMI shielding with heat shrink tubing for an all-in-one solution

Shrink-N-Shield® (TW) is an EMI shielding solution that features thin wall polyolefin heat shrink tubing and the Z-3250 shielding cloth. The thin wall polyolefin is lightweight and flexible, making this tubing ideal for applications that are limited with space and weight. The heat shrink is UL-rated for flame retardancy, meeting UL 224, VW-1, and has a 2:1 shrink ratio allowing for versatility in applications.

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

Shrink-N-Shield® (TW) is offered for diameters ranging from 0.875” to 1.25” and comes in 4-foot sticks, with custom sizes and lengths available upon request. The operational temperature range is -67°F to 257°F (-55°C to 125°C).

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: 0.1875" (3/16)
  • Material: Thin Wall Polyolefin
  • Heat Shrink Material: Polyolefin
  • Maximum Operating Temperature: 257°F
  • Minimum Operating Temperature: -67°F
  • RoHS: RoHS-10
  • Shelf-Life: 60 months
  • Shield Bonding: Nitrile Adhesive
  • Shielding: Z-3250
  • Shielding Material: Nickel Plated Copper
  • Shrink Ratio: 2:1

Thin Wall Polyolefin

  • REACH: Compliant
  • Dielectric Strength: 2500v (after shrink)
  • Elongation: 100% (after shrink)
  • Flammability: UL 224, VW-1
  • Thickness: 0.0059" - 0.0079"
  • Maximum Operating Temperature: 257°F
  • Minimum Operating Temperature: -67°F
  • RoHS: RoHS-10
  • Shelf Life: 60 Months
  • Shrink Ratio: 2:1
  • Tensile Strength: 1500 psi (after shrink)
  • Specific Gravity: 1.35 (max.)

Z-3250

    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.
    Shrink-N-Shield® (2:1) EMI Shielded Heat Shrink Tubing  PRT® (1553-135) Water-Blocking Wrap-Around Heat Shrink  Shrink-N-Shield® (3:1) EMI Shielded Heat Shrink Tubing
    NAME SHRINK-N-SHIELD® (2:1) EMI SHIELDED HEAT SHRINK TUBING  PRT® (1553-135) WATER-BLOCKING WRAP-AROUND HEAT SHRINK  SHRINK-N-SHIELD® (3:1) EMI SHIELDED HEAT SHRINK TUBING
    DESCRIPTION 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.  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.
    Closure  Tape (Specialty Surface)  
    RoHS RoHS-10  RoHS-10  RoHS-10
    Abrasion Resistance Best  Best  Best
    Installation Type Pull-Through  Wrap-Around  Pull-Through
    Purpose EMI Shielding  Water Blocking  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® (TW) Flexible EMI Shielded Tubing

    A flexible, flame-retardant, thin wall polyolefin heat shrink and EMI shielding solution that features a 2:1 shrink ratio and the Z-3250-CN shielding cloth.

    Drawing Number(s): ZT02-18-003

    Selected Part Number: ZT02-18-003-0.1875-B-X48.0

  • Thin wall polyolefin is ideal for applications where space and weight is limited
  • UL-rated meeting UL 224, VW-1
  • Combines EMI shielding with heat shrink tubing for an all-in-one solution
  • Shrink-N-Shield (TW)
    Shrink-N-Shield (TW) Heat Shrink Tubing with EMI Shielding
    Shrink-N-Shield (TW) Electrical Shielding
    Shrink-N-Shield (TW) Electromagnetic Interference Shielding

    Features

  • Flame retardant per UL 224, VW-1
  • Provides complete protection from EMI, RFI, and EMF
  • Operational temperature range is -67°F to 257°F (-55°C to 125°C)
  • Benefits

  • Flexible and lightweight heat shrink tubing
  • Ideal for grouped wires or a tight fit
  • Shrink ratio of 2:1
  • Shrink-N-Shield® (TW) Flexible EMI Shielded 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

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

    Shrink-N-Shield® (TW) Flexible EMI Shielded Tubing

    MATERIAL SPECIFICATIONS

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