HRHTHigh-ratio, high-temperature polyolefin tubing

  • shrink ratio approx. 6 : 1
  • flame retardant
  • flexible
  • EU ELV
  • EU RoHS
  • UL file

This high shrink ratio heat-shrinkable tubing is designed to accommodate large size transitions between cables, cable connectors and backshells thus simplifying repairs of damaged cable as well as sealing the back end of connectors. Flame-retardant HRHT is suitable for applications at elevated temperatures and offers excellent performance in both hot and cold environments.

Electrical properties

Dielectric strength 7 kV/mm

Thermal properties

Operating temperature -55 °C  to  135 °C
Processing temperature 135 °C  to  150 °C

Chemical properties

Fluid resistance fluid restistant

Physical properties

Tensile strength 8.3 MPa
Ultimate elongation 250.0 %
water absorption 0.5 %


Materials polyolefin
Flammability flame retardant


EU RoHS RoHS compliant
EU ELV ELV compliant
UL file E85381
SAE yes

General properties

Standard colours of product family
  • black (-0)
Brand TE Connectivity Raychem
Markets Industrial, Defense, Aviation


Size range of product family 19,05 … 114,3 mm
Shrink ratio approx. 6 : 1

Article stock HRHT (4 of 4 Article)

Article Inner Ø as supplied Inner Ø fully shrunk Wtn fully shrunk Color availability Bookmark
HRHT-1/3NA 19.05 mm 3.05 mm 3.94 mm black upon request
HRHT-2/4NA 38.16 mm 5.84 mm 3.94 mm black upon request
HRHT-3/3NA 50.8 mm 9.14 mm 3.94 mm black upon request
HRHT-4/3NA 76.2 mm 12.7 mm 3.94 mm black upon request