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ZTT® is a single-seam, tear-drop style, heat-sealed or sewn, tubular, pull-through jacket made from a vast array of Zippertubing's custom materials. It is an inexpensive way to cover single cables, small bundles of wires, or flat ribbon cables. The ZTT® jackets typically provide a flexible, abrasion-resistant, neat, and secure encapsulation of whatever wire or cable application you may have.

No special tooling is required to install these products on your specific application. ZTT® is supplied in reel form and custom colors may be available upon special request.

Refer to Zippertubing's material data sheets for specific performance information.


Drawing No. ZT18-09-001

Part No. ZT18-09-001-0.5

A heavy duty, 360° thermal protective heat-barrier, pull-through tubing jacket

  • A rugged, 360° fiberglass, thermal shield, perfect for applications that require high-temperature, pull-through, cable abrasion protection
  • Jacketing material is capable of withstanding continuous temperatures up to 1202°F
  • No special tooling required

Cable Diameter

Unit Length:




ZTT® (ALHTG) is intended to protect your cables, wires and components from abrasion, extreme heat temperatures and so much more. ZTT® (ALHTG) is ideal for cables from ½” to 7 7/8” in diameter, but can be customized to fit virtually any length or diameter.

ZTT® (ALHTG) uses a jacketing material that is made from a heavy duty, thermal resistant woven fiberglass fabric, with a double coated, heat reflective aluminum/PET film coating. The ALHTG-65 jacketing material can withstand continuous temperatures up to 1650°F.

The product is sewn in a tear-drop shape, using an “overlock-stitch” with an extreme high-temperature Kevlar thread that is reinforced with stainless steel wire. This specific Kevlar thread is considered one of the strongest threads on the market today—the steel wire core maintains its strength even after the silicon lubricated Kevlar has reached its maximum temperature. During the sewing process, the product is reinforced with stainless steel zipper stops in each corner of the jacket, which reduce abrasion damage during installation.

Combining these high-temperature materials in one product produces a staggering 1202°F, durable, 360° thermal protection product that is the perfect choice for applications that require high temperature, pull-through, component, cable or wire abrasion protection.


  • A complete 360° heat-reflective barrier
  • Operational temperature up to 1202°F
  • Custom diameters and lengths available


  • Outstanding thermal barrier and abrasion-covering properties
  • Simply pull through your wires or cables, no tools necessary

Related Products

Product Specifications

Minimum Operating Temperature -32 ° F (-36 ° C )
Maximum Operating Temperature 1202 ° F (650 ° C )

Available Attributes

Please contact us for custom needs. We have a solution for you!

Cable Diameter 0.5" 0.75" 1.0" 1.25" 1.5" 1.75" 2.0" 2.25" 2.75" 3.0" 7.875" Custom
Exterior Material ALHTG-65
Closure Stainless Steel Reinforced Kevlar Thread
Wire/Cable Leader Nylon Oxford Cloth
End(s) Termination Four Leg Metal Staple
Thermal Effectiveness

Material Specifications

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 suitabilituriy 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. © 2019 The Zippertubing® Company, Chandler, Arizona.

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