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ZTT® (ALR-550)

Drawing No. ZT06-09-003

Part No. ZT06-09-003-3.0

A Thin, Highly Flexible Thermal Heat Barrier Pull-Through Jacket Sewn with a Stainless Steel Reinforced Kevlar Thread.

  • This product provides a complete 360° heat-reflective barrier that can be sewn using an inside, or outside seam
  • ZTT® thermal protective sleeves are installed by pulling through your wires, or cables and are great for high-temperature applications

Cable Diameter

Unit Length:




The product is then sewn by using an "over-lock" stitch using a high-temperature, stainless-steel-reinforced Kevlar thread.

ZTT® (ALR-550) is a high-temperature, thermal-barrier, pull-through sleeve that is intended to protect your cables, wires, electronic sensors, insulation blankets, and so much more.

The jacketing material of ZTT® (ALR-550) is comprised of a medium-weight, woven, modified e-glass fabric with an aluminum metalized coating on both sides. The ALR-550 jacketing material can withstand continuous temperatures of 1,022°F.

The product is then sewn by using an "over-lock" stitch using a high-temperature, stainless-steel-reinforced Kevlar thread. This specific Kevlar thread is coated with polytetrafluoroethylene, houses a stainless steel wire core, and is considered to be one of the strongest threads on the market today.

Combining both of these high-temperature materials into one product produces a staggering 1,022°F durable, 360° thermal protection product that is the perfect choice for applications that require it.


  • Operational temperature range of -58° to 1,022°F
  • Many different 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

RoHS Compliant
Minimum Operating Temperature -58 ° F (-50 ° C )
Maximum Operating Temperature 1022 ° F (550 ° C )

Available Attributes

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

Shape of Installation Round
Cable Diameter 0.25" 0.5" 0.75" 1.0" 1.25" 1.5" 1.75" 2.0" 2.25" 2.5" 2.75" 3.0"
Exterior Material ALR-550
Closure Stainless Steel Reinforced Kevlar Thread
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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