ISO 9001 / IATF 16949

7150 W. Erie St, Chandler, AZ 85226, USA

(855) 289-1874



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ZTT® (ALR-550)

A Thin, Highly Flexible Thermal Heat Barrier Pull-Through Jacket Sewn with a 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.

Product Specifications

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

Available Attributes
Please call us at (855) 289-1874 for any 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

Material Specifications


Temperature Range -50° to 550°C (-58° to 1022°F)
Shelf-Life 60 months
Tensile Strength 4,400 N/5cm (warp) | 2,700 N/5cm (fill)
Material Thickness 0.024"
RoHS Compliant

Sewn (Stainless Steel Reinforced Kevlar Thread)

Diameter 0.011"
Coating Agent Teflon
Tensile Strength 20.5 lbs min.
Color Natural, Yellow
Temperature Range -240° to 898°C (-400° to 1650°F)
Tensile Strength 20.5 lbs min.
Finish Silicon Lubricated
Fiber Kevlar
Twist Direction "Z"

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. © 2018 The Zippertubing® Company, Chandler, Arizona.