High Flow Adhesive Heat Shrink Tubing

Join Multiple Wires with an Impenetrable and Waterproof Seal

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What's special about this heat shrink tubing?

  • Has a high viscosity hot melt adhesive that flows through gaps in bundles for a secure and weatherproof connection
  • High flowing adhesive provides superior strain relief for bundled cables
  • Clear tubing has color dashes on it to easily identify the size of the heatshrink using standard AWG colors
  • Click for More Features

This high flowing adhesive heat shrink tubing is ideal for joining multiple wires or cables. The very active hot melt adhesive flows between wires and cables to create a weatherproof seal that is highly puncture resistant and provides a superior strain relief.


NSPA-HST540C-48 High Adhesive Flow Shrink Tubing 48" 0.220" Clear w/ White Dashes
NSPA-HST541C-48 High Adhesive Flow Shrink Tubing 48" 0.300" Clear w/ Red Dashes
NSPA-HST542C-48 High Adhesive Flow Shrink Tubing 48" 0.350" Clear w/ Blue Dashes
NSPA-HST543C-48 High Adhesive Flow Shrink Tubing 48" 0.450" Clear w/ Yellow Dashes
  • Shrinks 4:1 ratio so it can be used on multiple cables and provide a tight seal
  • Color coded dashes on clear tubing for easy identification
  • Strong adhesive and polyolefin tubing combined create a puncture resistant
  • Operating temperature from -55°C to 110°C (67°F to 230°F)
  • Ideal for use on:
    • Joining multiple wires
    • Identifying wire gauge
    • Color coding wires or wire combinations
    • Waterproofing permanent connections
    • Creating sealed splices


Ordering Size Minimum Expanded I.D. Maximum Recovered I.D. Nominal Recovered - Wall Minimum Recovered Outer Wall Color Code
0.220 0.220" 0.045" 0.030" 0.027" Yellow
0.300 0.300" 0.060" 0.033" 0.028" White
0.350 0.300" 0.080" 0.038" 0.033" Green
0.450 0.450" 0.105" 0.043" 0.053" Red


Tensile Strength 2450 PSI
Ultimate Elongation 475%
2% Secant Modulus 16,500 PSI
Longitudinal Change +0%, -10%
Specific Gravity (Outer Wall) 0.97
Heat Aging 135°C (Adhesive softens)
Thermal Cycle 5°C to 135°C
Vibration 24 hours
Cold Flex -30°C
Dielectric Strength (Outer Wall) 500 V/mil
Dielectric Withstand 1000 volts AC
Current Leakage < 0.250 microamps
Auto Fluid Compatibility 8 fluids

View Measurement Conversion Chart

Limiting Oxygen Index (LOI)
The ratio of how much oxygen - as compared to other gases - needs to be present in the air surrounding a particular material in order for that material to burn. The fact that Earth's normal atmospheric air contains around 21% oxygen is used a reference point when materials are classified into burn categories that are based on Limiting Oxygen Index. Substances that are combustible in air containing less than 21% oxygen are considered flammable, while those that burn in the range of anything greater than 21% but less than 28% are typically labeled "slow burning". Any material with an LOI that exceeds 28% is classified as self-extinguishing.

In the table below, you'll find a list of polymers commonly found in our heat shrink tubing and braided sleeving products, along with their LOIs and the burn categories each falls into.

ECTFE (Ethylene chlorotrifluoroethylene) Halar 64% Self Extinguishing
Nomex N/A 28% Slow Burning
Nylon 6:6 N/A Ranges fron 24-29% Slow Burning to Self Extinguishing
PET (Polyethylene Terephthalate) Mylar (film), Dacron (fiber) Ranges from 21-34% Slow Burning to Self Extinguishing
Polyethylene (PE) N/A 17% Flammable
Polypropylene (PP) polythene (in the UK) 17% Flammable
Polytetrafluoroethylene (PTFE) Teflon 95% Self Extinguishing
Polyvinyl Chloride (PVC) N/A Ranges from 45-49% Self Extinguishing







Adhesive Heat Shrinkable TapeAdhesive Heat Shrinkable Tape
Available in standard & heavy-wall, this heat shrink tape allows you to waterproof, splice or repair cables without the need to disconnect them.

heat gunVT-1100 Heat Gun
Our 120VAC 1200W heat gun has variable temperature capability from 250 to 1100 degrees F. It has a two speed air flow adjustment with a stand for easy hands-free use.
F6 Braided Wrap-Around SleevingF6 Braided Wrap-Around Sleeving
From per foot
F6's unique split, semi-rigid braided construction, makes it the ideal solution for situations where ease of installation is of primary importance. Great on home theater wires, computers or gaming system components, even on small equipment hosing. SAVE! on pricing when purchasing bulk.

Wire Loom Colored Wire Loom
From / FT
Split loom corrugated tubing is ideal for wrapping up your cables and organizing them into a neat package. Instead of having multiple tangled wires and cables, you are left with one neat and orderly cable bundle.

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You can also call us toll free 866.222.0030


by PowerReviews
0.220 in High Adhesive Flow Heat Shrink -48 in in Long

(based on 3 reviews)

Ratings Distribution

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of respondents would recommend this to a friend.

Reviewed by 3 customers

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Highly versatile product!

By Field Researcher

from E Lansing, Michigan

About Me Gearhead

Verified Buyer


  • Aesthetically Pleasing
  • Durable
  • Easy To Set Up
  • Good Interface
  • Great Results


    Best Uses

    • Big Office
    • Home
    • Organization
    • Protection
    • Small Office

    Comments about 0.220 in High Adhesive Flow Heat Shrink -48 in in Long:

    I used this product in the construction of custom thermistor probes for field research. It saved me hours of work by combining high flow adhesive with heat shrink, giving me a water-tight seal. I would typically encapsulate the probe in copper tube for additional protection, but this was unnecessary, because this shrink tube is particularly rigid and durable. It does not bend easily, but that is exactly what I needed!

    • Primary use:
    • Business

    My favorite heat shrink!

    By Bill

    from Fairbanks, AK

    About Me Gearhead

    Verified Buyer


    • Aesthetically Pleasing
    • Durable
    • Easy To Set Up
    • Great Results
    • Weatherproof


      Best Uses

      • In the Field

      Comments about 0.220 in High Adhesive Flow Heat Shrink -48 in in Long:

      This is the best heat shrink I have found for weatherproofing any sort of cable splice. I use it for everything and the adhesive does a great job of flowing into all the spaces between the wires.

      • Primary use:
      • Business

      great product for water proof seals

      By longzoo

      from johnstown, pa

      Verified Reviewer


      • Good Quality


      • Not very flexible

      Best Uses

      • Inline splices
      • Weather proof

      Comments about 0.220 in High Adhesive Flow Heat Shrink -48 in in Long:

      nice shrink for inline splices but not for tight bends.

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