Heat-Shrink & Cold-Shrink Sleeves

Heat Shrink
Heat shrink tubing is a type of extruded plastic tube that reduces in size when heated to a pre-determined shrink ratio to fit a specific application. A sleeve should be selected in a size larger than required to cover both the wire and components it is to be used with, before being shrunk to fit. Once fitted, the sleeve provides long lasting durability.

Materials and Types
Heat shrink is available in various different materials, colours, sizes and shrink ratios to suit the application required. Some are available with an adhesive lining that helps to bond the tubing with the cables and components.
Polyolefin is the most common material as it is highly durable and can withstand high temperatures without a restricted shelf life. They are also manufactured from PVC, fluoropolymer, neoprene and elastomeric materials. The material is often cross linked to assist with the tubing shrinking back to its original dimensions.
The pre-determined shrink ratio, for example, 2:1 or 3:1, is the measurement of how small the sleeve goes in comparison to its expanded size. When the number is higher in the shrink ratio the greater the shrinkage. It allows a precise, secure fit that does not come off easily.
Applications
Heat shrink tubing is versatile and easy to use therefore it can be applied in an assortment of applications, the most common uses being:
• Electrical insulation – covering joints and repairs
• Strain relief – relieving pressure from the cable
• Wire bundling – in harness building and cable organisation
• Environmental and mechanical protection – preventing damage from abrasion, moisture, dust and chemicals
• Identification – the wide range of colours the tubing is manufactured in allows it to be used for colour coding and component ID
Installation
When selecting the right size tubing, you should consider the maximum and minimum diameter of what you are covering. Use this information to check against the recovered diameter (the diameter after shrinking) and expanded diameter (the pre-shrinkage diameter) of the sleeve.

You can cut most tubing to a suitable length using standard scissors. The unshrunk tubing can be slid over the area or objects it is to cover. Then with a hand held heat gun or heat shrink oven, the sleeve is shrunk tightly. To prevent uneven shrinkage or overheating, check the recommended heating temperature beforehand.

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Description Price Sleeve Diameter Shrunk Diameter Colour Sleeve Type Adhesive Lined Shrink Ratio Sleeve Length Material Flame Retardant Halogen Free Series Standards Met
RS Stock No. 447-373
Mfr. Part No.308-11203 HIS-A-12/4-PO-X-CL (5)
MYR198.45
1 Reel of 5 Metre(s)
Reel(s)
12mm 4mm Clear Heat Shrink Yes 3:1 5 m Cross Linked Polyolefin Yes - HIS-A -
RS Stock No. 447-406
Mfr. Part No.308-10303 HIS-A-3/1-PO-X-CL (10)
MYR185.11
1 Reel of 10 Metre(s)
Reel(s)
3mm 1mm Clear Heat Shrink Yes 3:1 10 m Cross Linked Polyolefin Yes - HIS-A -
RS Stock No. 447-402
Mfr. Part No.308-12403 HIS-A-24/8-PO-X-CL (3)
MYR269.09
1 Reel of 3 Metre(s)
Reel(s)
24mm 8mm Clear Heat Shrink Yes 3:1 3 m Cross Linked Polyolefin Yes - HIS-A -
RS Stock No. 447-395
Mfr. Part No.308-10603 HIS-A-6/2-PO-X-CL (5)
MYR161.09
1 Reel of 5 Metre(s)
Reel(s)
6mm 2mm Clear Heat Shrink Yes 3:1 5 m Cross Linked Polyolefin Yes - HIS-A -
RS Stock No. 501-4199
Mfr. Part No.308-10600 HIS-A-6/2-PO-X-BK (5)
MYR228.86
1 Reel of 5 Metre(s)
Reel(s)
6mm 2mm Black Heat Shrink Yes 3:1 5 m Cross Linked Polyolefin Yes - HIS-A -
RS Stock No. 639-3500
Mfr. Part No.323-50120 TREDUX-MA47-12/3-PO-X-BK (6)
MYR45.37
Each
units
12mm 3mm Black Heat Shrink Yes 3:1 1 m Cross Linked Polyolefin - - TREDUX-MA47 -
RS Stock No. 832-6975
Mfr. Part No.318-31200 TA32-12/4-PO-X-BK (125)
MYR27.846
Each (In a Pack of 5)
units
12mm 4mm Black Heat Shrink Yes 3:1 1.2 m Polyolefin Yes - TA32 -
RS Stock No. 914-6830
Mfr. Part No.300-31900 HIS-PACK-19.1/9.5-PO-X-BK (5)
MYR124.30
1 Reel of 5 Metre(s)
Reel(s)
19.1mm 9.5mm Black Heat Shrink - 2:1 5 m Polyolefin Yes - HIS-PACK SAE, UL Listed, UL Recognized
RS Stock No. 763-0967
Mfr. Part No.450-20011 RMS 52-15-PO-X-BK (500.0)
MYR148.19
Each
units
52mm 15mm Black Heat Shrink Yes 4.5:1 500 mm POX - - RMS -
RS Stock No. 763-0942
Mfr. Part No.450-20001 RMS 43-10-PO-X-BK (500.0)
MYR152.95
Each
units
43mm 10mm Black Heat Shrink Yes 4.5:1 500 mm POX - - RMS -
RS Stock No. 450-632
Mfr. Part No.901-10233
MYR140.30
1 Reel of 5 Metre(s)
Reel(s)
19.1mm 9.5mm Black Heat Shrink - 2:1 5 m Cross Linked Polyolefin Yes - TF21 -
RS Stock No. 448-247
Mfr. Part No.901-10155
MYR149.33
1 Reel of 10 Metre(s)
Reel(s)
1.5mm 0.5mm Black Heat Shrink No 3:1 10 m Cross Linked Polyolefin Yes - HIS-3 -
RS Stock No. 832-6965
Mfr. Part No.318-30300 TA32-3/1-PO-X-BK (500)
MYR20.37
Each (In a Pack of 5)
units
3.2mm 0.6mm Black Heat Shrink Yes 3:1 1.2 m Polyolefin Yes - TA32 -
RS Stock No. 447-412
Mfr. Part No.308-10300 HIS-A-3/1-PO-X-BK (10)
MYR204.96
1 Reel of 10 Metre(s)
Reel(s)
3mm 1mm Black Heat Shrink Yes 3:1 10 m Cross Linked Polyolefin Yes - HIS-A -
RS Stock No. 763-0958
Mfr. Part No.450-20010 RMS 52-15-PO-X-BK (250.0)
MYR66.11
Each
units
52mm 15mm Black Heat Shrink Yes 4.5:1 250 mm POX - - RMS -
RS Stock No. 711-4783
Mfr. Part No.380-03005 SHRINKIT 321 UNIVERSAL BASIC-PO-X-MIX
MYR278.71
Each
units
3 mm, 6 mm, 9 mm, 12 mm, 18 mm Assortiment Black, Blue, Green/Yellow, Red, White Heat Shrink No 3:1 35 mm Cross Linked Polyolefin Yes - - -
RS Stock No. 449-159
Mfr. Part No.901-10196
MYR119.87
1 Reel of 5 Metre(s)
Reel(s)
19.1mm 9.5mm Black Heat Shrink - 2:1 5 m Cross Linked Polyolefin Yes - TCN20 -
RS Stock No. 914-6877
Mfr. Part No.309-31903 TF24-19.1/9.5-PO-X-CL (50)
MYR1,194.94
1 Reel of 50 Metre(s)
Reel(s)
19.1mm 9.5mm Clear Heat Shrink - 2:1 50 m Polyolefin - Yes TF24 DEF STAN, SAE, VG
RS Stock No. 712-3633
Mfr. Part No.308-30611 HIS-3-BAG-6/2-PO-X-RD (10)
MYR48.79
1 Bag of 10
Bag(s)
6mm 2mm Red Heat Shrink - 3:1 200 mm Cross Linked Polyolefin Yes - HIS-3 BAG -
RS Stock No. 639-3572
Mfr. Part No.319-00607 TREDUX-6/2-PO-X-GNYE (15)
MYR28.89
Each
units
6mm 2mm Green/Yellow Heat Shrink - 3:1 1 m Cross Linked Polyolefin Yes - TREDUX -