Shrink-N-Shield® (HW)

A durable, heavy wall heat-shrink tubing paired with the Z-3250-CN shielding fabric to protect from EMI.

Drawing Number(s): ZT04-18-002

Shrink-N-Shield® (HW)

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Selected Part Number:ZT04-18-002-01-B-X48.0
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WARNING: Cancer and Reproductive Harm |


Shrink-N-Shield® (HW)
  • Heavy wall heat-shrink tubing is UL-rated meeting UL 486D
  • EMI shielding fabric provides better protection from electromagnetic interference
  • Shrink ratio of 3:1 allows for versatility in application uses

Shrink-N-Shield® (HW) combines two proven technologies into a single, easy to install product for adding EMI shield protection to wire and cable bundles with diameters of 1/2" and less. Makes adding an EMI shield or secondary EMI shielding to wire and cable a snap. This product is comprised of SAE-AMS-DTL-23053/15 (w/o the adhesive layer) heat shrink tubing and Zippertubing's Z-3250 conductive cloth which has outstanding shielding properties. It is ideal for applications where thick, heavy wall insulation is needed for superior mechanical protection. This product has an operational temperature range of -55°C to 110°C. This product is supplied in four foot long sticks.



Overall Performance

  • Diameter - Before Shrink: 0.35" (#01)
  • Material: Heavy Wall Polyolefin
  • Heat Shrink Material: Polyolefin
  • Maximum Operating Temperature: 230°F
  • Minimum Operating Temperature: -40°F
  • Shelf-Life: 60 months
  • Shield Bonding: Nitrile Adhesive
  • Shielding: Z-3250
  • Shielding Material: Nickel Plated Copper
  • Shrink Ratio: 3:1

Heavy Wall Polyolefin

  • Elongation: per AMS DTL-23053/15
  • Flammability: Flame retardant (UL 486)
  • Maximum Operating Temperature: 235°F
  • Minimum Operating Temperature: -67°F
  • Shelf Life: 60 Months
  • Shrink Ratio: 2:1
  • Tensile Strength: per AMS DTL-23053/15


  • 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
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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Shrink-N-Shield® (2:1) Flex-Shield™ (HP)
DESCRIPTION A heat-shrink tubing that is MIL-SPEC and provides exceptional shielding from EMI, RFI, and EMF. A braided, expandable EMI, RFI, and EMF shielding sleeve that is lightweight and flexible, making it the ideal solution for the aerospace industry.
RoHS RoHS-10 RoHS-10
Abrasion Resistance Best
Installation Type Pull-Through Pull-Through
Purpose EMI Shielding Sleeve
Min Temperature Extreme Moderate
Minimum Operating Temperature -40°F -40°F °F
Max Temperature Moderate Moderate
Maximum Operating Temperature 275°F 302°F °F
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