ISO/TS 16949 ISO 9001
Building Quality Products & Solutions Since 1957


PRT® is a wrap-around, heat-shrinkable tubing that provides a means of adding additional insulation to an assembled wire or cable. PRT® can be used to protect in-service electrical systems without the need to remove or disassemble the associated connectors and end hardware. This product is also a great in-service repair tubing where a side-entry installation is required.

A heat gun is used to recover the material in a fashion similar to standard, non-split, heat-shrinkable tubing. This material has an operational temperature range of -55° to 135°C (-67° to 275°F).

PRT® (ES-135) with Part Number: ZT03-04-010-01-X600.0

PRT® (ES-135)

Drawing No. ZT03-04-010

Part No. ZT03-04-010-01-X600.0

NSN No. 5970-01-611-7759

Environmentally Sealed High Temp PRT® Heat Shrink Wrap

Shape of Installation


Cable Diameter - After Shrinkage

Unit Length

Exterior Material


Environmental Seal



Product Specifications

Shelf-Life 24 months
RoHS Compliant

Available Attributes
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Shape of Installation Round
Cable Diameter - After Shrinkage 0.040" - 0.075" (#01) 0.076" - 0.125" (#03) 0.126" - 0.174" (#05) 0.175" - 0.250" (#07) 0.25" - 0.37" (#09) 0.38" - 0.49" (#11) 0.50" - 0.62" (#13) 0.63" - 0.74" (#15) 0.75" - 0.87" (#17) 0.88" - 0.99" (#19) 1.0" - 1.12" (#21) 1.13" - 1.24" (#23) 1.25" - 1.37" (#25) 1.38" - 1.49" (#27) 1.50" - 1.62" (#29) 1.63" - 1.74" (#31) 1.75" - 1.87" (#33)
Unit Length 50 ft. Roll
Exterior Material Polyolefin Heat Shrink
Closure Adhesive
Environmental Seal Z-Block-135

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.

PRT® (ES-135) combines the proven characteristics of heat shrinkable tubing, a hot melt adhesive and the ease of installation using Zippertubing's wrap around heat shrink products. This PRT® (ES-135) is designed to provide "Water Blocking" an environmentally sealed repair patch to wires and cables.

PRT® (ES-135) material has an operational temperature range of -55° to 135°C (-67° to 275°).

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