Black 3:1 Adhesive Lined Heat Shrink Tubing - Jumbo Reel Reviews

The 3:1 Adhesive Lined Heat Shrink Tubing has been manufactured to provide a moisture proof seal in a wide range of applications, including sealing electrical components, cable harnesses, cable ends and splices.
SKU
Colour
Length (m)
Supplied InternalDiameter Min. (mm)
Recovered InternalDiameter Min. (mm)
Wall ThicknessAfter Recovery (mm)
AdhesiveThickness (mm)
GCT31HST32BLA
Black
150
3.2
1.1
1.00 (±0.28)
0.3
GCT31HST48BLA
Black
75
4.8
1.6
1.00 (±0.28)
0.3
GCT31HST64BLA
Black
60
6.4
2.1
1.00 (±0.28)
0.3
GCT31HST95BLA
Black
60
9.5
3.2
1.40 (±0.28)
0.45
GCT31HST127BLA
Black
25
12.7
4.2
1.78 (±0.38)
0.53
GCT31HST191BLA
Black
25
19.1
6.4
2.25 (±0.55)
0.68
GCT31HST254BLA
Black
25
25.4
8.4
2.54 (±0.55)
0.76
GCT31HST390BLA
Black
25
39
12.7
2.54 (±0.55)
0.76
Material:
 Polyolefin - Dual wall adhesive lined
Characteristics:
Flexible adhesive lined heat shrink
Manufactured to give a moisture proof seal in a wide range of applications 
Applications:
Sealing electrical components
Cable harnesses
Cable ends
Splices
Chemical Resistance:
Fuel
Hydraulic fluid
Lubricating oil
Shrinkable Temperature:
80°C
Operating Temperature:
-55°C to +125°C 
Longitudinal Shrinking:
Less than 5%
Please find our heat shrink gun to shrink the tubing: Available here.
For more information on heat shrink tubing please review our comprehensive guide to heat shrink tubing detailing how to pick the correct size and how to apply it or read our buyer's guide where we outline the key differences between 2:1 and 3:1 tubing.
Frequently Asked Questions
What is heat shrink tubing used for?+
Heat shrink tubing is used to insulate, protect and identify electrical connections, cable splices, joints and exposed wiring. When heat is applied, the tubing shrinks tightly around the conductor, forming a snug protective sleeve.
What does 3:1 shrink ratio mean?+
A 3:1 ratio means the tubing shrinks to one-third of its original diameter when heated, allowing it to fit over connectors and irregular shapes that standard 2:1 tubing cannot accommodate.
What does adhesive-lined heat shrink do?+
Adhesive-lined heat shrink tubing has a meltable inner glue layer that flows when heated, sealing the tube to the cable. The result is a fully waterproof and strain-relieved joint - ideal for outdoor, marine and underground splices.
How is jumbo reel heat shrink supplied?+
Jumbo reels supply heat shrink tubing in a continuous roll, cut to length as needed at installation - the cost-effective choice for trade users running large quantities of insulation and splice work.
Got a different question? Our team is happy to help.
Get in Touch

About GTSE:

Founded in the UK in 2011, GTSE is the one-stop shop for cable ties, accessories and tools. We supply high-quality, durable and dependable solutions for every purpose, whether it’s a tiny DIY job or a huge commercial project. You can count on us to deliver exactly what you need – and fast.

Phone:

01246 386 126

Email:

sales@gtse.co.uk

Location:

GTSE WeWork - Dalton Place,
29 John Dalton St,
Manchester
Manchester
M2 6DS