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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® (1553-135)

Drawing No. ZT04-KT-001

Part No. ZT04-KT-001-01

An EMI shielded, water-blocking, wrap-around heat shrink solution (Up to 276°F)

  • Never disconnect or pull through another wire or cable again and environmentally seal them
  • Excellent anti abrasive, environmental, chemical, and electrical properties with resistance to most oils and fluids, mild acids, and alkalis
  • The PRT® (S-3250) EMI shielding tape material offers better shielding effectiveness of 65 db from 10MHz to 10GHz

Diameter Range


Estimated Shipping: 3-14 Business Days

PRT® (1553-135) combines the proven benefits of heat shrinkable tubing (SAE-AMSDTL23053/5A), a hot melt adhesive environmental seal and EMI shielding with the installation ease of using Zippertubing's wrap around products. This product is designed to provide an environmentally sealed repair to both the shield and the outer jacket of damaged, shielded cable from 0.075" to 1.00" in diameter. Testing has shown that a PRT® (1553-135) repaired shielded cable will perform at or near the original shield cable performance levels. This product has an operational temperature range of -55° to 135°C (-67° to 275°F).

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Product Specifications

RoHS Compliant
Shelf Life 24 months
Minimum Operating Temperature -67 ° F (-55 ° C )
Maximum Operating Temperature 275 ° F (135 ° C )

Available Attributes

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

Shape of Installation Round
Diameter Range 0.075" - 0.125" 0.126" - 0.174" 0.175" - 0.249" 0.25" - 0.37" 0.38" - 0.49" 0.50" - 0.62" 0.63" - 0.74" 0.75" - 0.87" 0.88" - 1.0"
Exterior Material Polyolefin Heat Shrink
Shielding Z-3250-CN
Environmental Seal Z-Block-135
Shielding Effectiveness

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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