Shrink-N-Shield (PTFE) Introduction Video

Shrink-N-Shield® (PTFE) EMI Shielded Heat Shrink Tubing

Name: Shrink-N-Shield® (PTFE) EMI Shielded Heat Shrink Tubing
Brand: Zippertubing
SKU: ZT18-18-006-0.1875-B-X48.0
Availability: InStock

A flame-retardant, abrasion-resistant, and chemically inert heat shrink tubing with a 4:1 heat shrink ratio capable of withstanding temperatures up to 250°F.

Drawing Number(s): ZT18-18-006

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Selected Part Number:ZT18-18-006-0.1875-B-X48.0

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Overview

Military-grade and conforms to the requirements of SAE-AMS-DTL-23053/12 Class 5
Highly flexible, semi-rigid heat shrink tubing material

Shrink-N-Shield® (PTFE) is an EMI shielding heat-shrink tubing paired with PTFE material. PTFE is a clear, Teflon, flame-retardant, abrasion-resistant, and chemically inert heat shrink that can be used in a variety of applications. This electrical insulation tubing is a highly flexible yet durable material, and with its broad operational temperature range, PTFE can be used in extreme conditions. PTFE is military-grade and conforms to the requirements of SAE-AMS-DTL-23053/12 Class 5.

PTFE is available in 2:1 and 4:1 heat shrink ratios, and can be used in multiple configurations. A perfect example is our Shrink-N-Shield® (Nano) 4:1, which provides 360° of EMI shielding and abrasion protection to wires as small as 0.015” in diameter.

Shrink-N-Shield® (PTFE) comes standard with the Z-3250 shielding cloth. However, other EMI-shielding materials are available upon request.

The Z-3250 shielding cloth is made of a taffeta fabric plated with copper and 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.

Shrink-N-Shield® (PTFE) is offered in standard diameters from 0.1875” to 1.25” with custom sizes, and EMI shielding materials available upon request. The product has an operational temperature range of -40°F to 250°F (-40°C to 121°C).

Features

Standard diameters available from 0.1875” to 1.25” with custom sizes available upon request
Can be used as secondary jacketing for protection of wires or cables
Operational temperature range of -40°F to 250°F (-40°C to 121°C)

Benefits

4:1 shrink ratio allows for versatile applications
Shields wires from EMI, RFI, and EMF
Military-grade, flame-retardant and self-extinguishing jacketing

Installation Instructions

FREQUENTLY ASKED QUESTIONS

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.

Specifications

Overall Performance

Diameter - Before Shrink: 0.1875" (3/16)
Material: PTFE
Heat Shrink Material: Teflon
Maximum Operating Temperature: 250°F
Minimum Operating Temperature: -40°F
RoHS: RoHS-6
Shelf-Life: 60 months
Shield Bonding: Nitrile Adhesive
Shielding: Z-3250
Shielding Material: Nickel Plated Copper
Shrink Ratio: 4:1 or 2:1

PTFE

Elongation: 200% (min)
Flammability: UL224, VW-1
Maximum Operating Temperature: 500°F
Minimum Operating Temperature: -85°F
Shelf Life: 60 Months
Shrink Ratio: 4:1 (Standard) & 2:1

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.

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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

Guides

Shrink-N-Shield® (PTFE) EMI Shielded Heat Shrink Tubing

A flame-retardant, abrasion-resistant, and chemically inert heat shrink tubing with a 4:1 heat shrink ratio capable of withstanding temperatures up to 250°F.

Drawing Number(s): ZT18-18-006

Selected Part Number: ZT18-18-006-0.1875-B-X48.0

Military-grade and conforms to the requirements of SAE-AMS-DTL-23053/12 Class 5

Highly flexible, semi-rigid heat shrink tubing material