ZHTM thick-walled heat shrink tubing

ZHTM thick-walled heat shrink tubing, a flexible, low-toxicity shrink tubing for fire safety applications. This material exhibits excellent fire safety properties combined with low smoke emission and low development of acidic gases, while maintaining good mechanical and fluid-resistant properties.

Applications for ZHTM

Used for insulation and protection of cables, harnesses, and electrical and electronic components in confined spaces, such as in maritime applications, public transport systems, and offshore installations, to mitigate toxicity risks, or where equipment would be irreparably damaged by aggressive products during combustion.

Features of ZHTM Heat Shrink Tubing

  • Low toxicity for fire safety applications.

  • Minimum shrink temperature: 80°C [176°F]
  • Operating temperature range: -30°C to 105°C [-22°F to 221°F]
  • Shrink tubing for Raychem System 100
  • RoHS compliant properties.

  • Low smoke emission
  • 2:1 shrink ratio

Product Dimensions Raychem ZHTM

Thick-walled halogen-free shrink tubing with 2:1 ratio – click through to directly view the products.

Type Unshrunk Inner Diameter Shrunk Inner Diameter Wall Thickness
ZHTM-3/1.5 3.0 [0.118] 1.5 [0.059] 0.70 ± 0.10 [0.028 ± 0.004]
ZHTM-5/2.5 5.0 [0.197] 2.5 [0.098] 0.75 ± 0.12 [0.030 ± 0.005]
ZHTM-8/4 8.0 [0.315] 4.0 [0.157] 0.80 ± 0.15 [0.031 ± 0.006]
ZHTM-12/6 12.0 [0.472] 6.0 [0.236] 0.90 ± 0.15 [0.035 ± 0.006]
ZHTM-18/9 18.0 [0.709] 9.0 [0.354] 1.00 ± 0.18 [0.039 ± 0.007]
ZHTM-24/12 24.0 [0.945] 12.0 [0.472] 1.10 ± 0.20 [0.043 ± 0.008]
ZHTM-40/20 40.0 [1.575] 20.0 [0.789] 1.30 ± 0.23 [0.051 ± 0.009]
ZHTM-50/30 50.0 [1.969] 30.0 [1.181] 1.50 ± 0.28 [0.059 ± 0.011]

Order information Raychem ZHTM

Standard color: Black (-0)


Size choice: Always order the largest size that will fit snugly over the part to be covered.


Packaging: Reels and small packaging


Order description: Specify product name, size, and color (for example, ZHTM-8/4-0).

Our range of Raychem ZHTM heat shrink tubing

Series Military Agency Industry Raychem
ZHTM Def. Stan. 59-97 BS 4G-198, Part 3 Type 15 BR 1236A RW-2058
Issue 3 Type 8 VG 95343 Part 5 Type L
VDE 0341/Pt 9005

Our range of Raychem ZHTM shrink tubing

We are happy to help you make the right choice

If you have questions about the Raychem ZHTM thick-walled shrink tubing product series or would like advice on the right choice for your applications, Idétrading is here to help. We are ready to assist you in selecting sustainable and reliable sealing solutions.

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