Tyco Heat Shrink Cable Entry Seals

Raychem cable entry seals for effective watertight, fume and pressure tight sealing

Heat Shrink Cable Entry Seals

cable glandHeat-shrinkable cable entry seals (CES) provide a watertight, fume-tight seal where cables enter connection boxes, bulkheads, or other enclosures. CESs are available in two basic types: standard and threaded.

The standard CES for thin-wall enclosures consists of a three-part assembly – a rigid nylon nut, an O-ring, and a heat-shrinkable molded body. The CES for threaded-hole applications is a one-part assembly that combines a tapered national pipe thread (NPT) in rigid nylon with a heat-shrinkable molded body. To meet sealing requirements, all CESs have factory-applied adhesive that provides the seal to wire and cable jackets.


  • Cable penetration into panels, junction boxes and sealed cabinets
  • Bulkhead penetration


  • Rated to 600 volts

Physical or Other Properties

  • Polyolefin shrinkable body
  • Metal or nylon nut
  • Hot melt thermoplastic adhesive


  • Pressure sealing: 25 psi


  • Molded heat-shrink body: Flame retardant polyolefin
  • Adhesive: Hot melt adhesive

Standard Specification

  • Raychem CES Specification RT-1335
  • SAE-AS81765/1 Type 1
  • Raychem Molded Heat-shrink Body Specification RT-301
  • Raychem Adhesive Specification RW-2019


Cable Services web link: Heat shrink cable entry seals

Data Sheet PDF: Data Sheet Tyco Heat-Shrinkable Cable Entry Seals (CES)

Cable Services Catalogue PDF: Heat shrink cable entry seals

Cable Gland Sales Enquiry

Cable Services are able to offer full technical support for the full product range of cable glanding and cable entry sealing products.
Please contact one of our sales offices for product information and technical specifications.
Wrexham - Tel: 01978 340 450 - Email Enquiry
Stone - Tel: 01785 825 970 - Email Enquiry
Liverpool - Tel: 0151 933 9022 - Email Enquiry
Glasgow - Tel: 0141 621 2060 - Email Enquiry