Environmental Shrink Boots

Environmental Shrink Boots

Plus Transitions, Convoluted Boots and Adapters For Harsh-Environment Cable Assemblies

Series 77

Shrink boots provide mechanical and environmental protection to connector-to-cable transitions. Specially formulated polymers are injection-molded, then heated and expanded. The shape-memory property of the material allows it to return to its original shape when heated with a hot air gun. Optional adhesive coatings on the inside of the boot provide a watertight, high-strength bond to the cable jacket and the connector or adapter.

Shrink boots are supplied in expanded form. The boot is heated, stretched on a mandrel, then cooled. The boot retains its expanded form until heat is applied.

Application of heat restores the boot to it's original dimensions.

Adapter boots are designed for use with connector adapters which attach to mil spec circular connectors. Adapters have a boot groove to accept an interlocking lip on the boot for improved strength. These adapters accept both shielded and unshielded cable. Adapters can be unthreaded from the connector for repair of damaged connector pins.

Lipless boots are designed for direct attachment to connector threads. The adapter is eliminated, saving weight and space. Adhesive lining provides sealing and improved mechanical strength.

Shrink boots are available in three materials: Type 1 high performance elastomer provides improved resistance to heat, oils and fuels. Type 2 zero halogen material is intended for applications where low toxicity is a must. Type 3 general purpose flexible polyolefin is a good choice for occasional exposure to heat and chemicals.

Compound Material Performance Specifications

Mod Code

Series 77 Cross-Reference Search

Enter a complete (or partial) Glenair, Tyco or Hellerman Part Number for your Environmental Shrink Boot to quickly and easily find the cross-reference equivalent. For example, enter 770-001A103 and click 'Find'.

View or download the Series 77 Part Number Cross-Reference:

Tyco to Glenair Part Number
Hellermann to Glenair Part Number

Shrink Boot Application Checklist

Material Safety Data Sheets (MSDS)

Series 77 Heat Shrink Boot Shelf Life

US Army Tank-Automotive Command Approved

Installation Procedures


Heat Shrink Boot Installation Procedure

YouTube Download [ 15 MB webm ]

Related Catalog

Download the complete catalog:
Environmental Shrink Boots [ 7 MB pdf ]
Lipped Straight Adapter Shrink Boots

Lipped Straight Adapter Shrink Boots

Section B
  • Standard
  • Short
  • Long Tail
  • High Ratio
90° Right Angle and 45° Angle Lipped Adapter Boots

90° Right Angle and 45° Angle Lipped Adapter Boots

Section C
Straight Lipless Boots

Straight Lipless Boots

Section D
90° Right Angle Lipless Boots

90° Right Angle Lipless Boots

Section E
Convoluted Boots

Convoluted Boots

Section F
"Y" and "T" Transitions

"Y" and "T" Transitions

Section G
  • Low Profile "Y"
  • Wide Body "Y"
  • Low Profile "T"
  • Wide Body "T"
  • Low Profile 1:3
  • Wide Body 1:3
  • Wide Body 1:4
Shrink Boot Adapters

Shrink Boot Adapters

Section H
  • Shrink Boot Adapter Selection Guide
  • Interface Dimensions and Standards
  • Materials and Finishes
  • Shrink Boot Adapters
Adhesives and Installation Instructions

Adhesives and Installation Instructions

Section I
  • Two Part Epoxy and Dispensing Gun
  • General Boot Installation Guide
  • Two Part Epoxy Installation Guide
  • Type R One Part Epoxy Installation Guide
  • Type W1 High Temp Hot Melt Installation Guide
  • Type W2 Hot Melt Installation Guide
Part Number Index and Cross-Reference

Part Number Index and Cross-Reference

Section J