Heat-Shrink & Cold-Shrink Sleeves

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. For help selecting the right size heat shrink tubing, please see our heat shrink guide.


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. 398-313
BrandRS PRO
£1.576
Each (In a Pack of 5)
Units
3.2mm 1.6mm Red Heat Shrink No 2:1 1.2m Polyolefin Yes No - -
RS Stock No. 398-464
BrandRS PRO
£2.00
Each
Units
1.6mm 0.8mm Clear Heat Shrink No 2:1 1.2m Fluoropolymer Yes No - SAE-AMS-DTL-23053/13
RS Stock No. 241-7517
BrandRS PRO
£7.70
Each
Units
19mm 6mm Red Heat Shrink Yes 3:1 1.2m Polyolefin Yes No - AMS-DTL-23053/4 Class 3, RoHS Compliant, UL 224 E75077 CSA C22.2 No.198.1
RS Stock No. 700-4450
BrandRS PRO
£11.75
1 Reel of 5 Metre(s)
Reel(s)
9mm 3mm Clear Heat Shrink No 3:1 5m Polyolefin No No - UL
RS Stock No. 398-278
BrandRS PRO
£2.89
Each (In a Pack of 5)
Units
12.7mm 6.4mm Red Heat Shrink No 2:1 1.2m Polyolefin Yes No - -
RS Stock No. 700-4453
BrandRS PRO
£1.20
Each
Units
3mm 1mm Clear Heat Shrink No 3:1 10m Polyolefin No No - UL
RS Stock No. 399-956
BrandRS PRO
£2.89
Each (In a Pack of 5)
Units
12.7mm 6.4mm Clear Heat Shrink No 2:1 1.2m Polyolefin No Yes - BS3G 198 Part 3 11B, CSA C22.2 No. 198.1, IEC 60684-3-212 A&B, MIL SAE-AMS-DTL 23053/5 Class 1, RoHS Compliant, UL 224 VW-1 E48762, VG 95343 Part 5 A&B
RS Stock No. 700-4658
BrandRS PRO
£12.90
1 Reel of 6 Metre(s)
Reel(s)
9.5mm 4.8mm Black Heat Shrink No 2:1 6m Polyolefin Yes No - UL
RS Stock No. 443-4952
BrandRS PRO
£21.74
1 Bag of 20
Bag(s)
12.7mm 6.4mm Clear Heat Shrink No 2:1 300mm Polyolefin No Yes - BS3G 198 Part 3 11B, CSA C22.2 No. 198.1, IEC 60684-3-212 A&B, MIL SAE-AMS-DTL 23053/5 Class 1, RoHS Compliant, UL 224 VW-1 E48762, VG 95343 Part 5 A&B
RS Stock No. 398-442
BrandRS PRO
£2.75
Each
Units
3.2mm 1.6mm Clear Heat Shrink No 2:1 1.2m Fluoropolymer Yes No - SAE-AMS-DTL-23053/13
RS Stock No. 483-4251
BrandRS PRO
£9.22
1 Pack of 5
Pack(s)
4.8mm 2.4mm Brown Heat Shrink No 2:1 1.2m Polyolefin Yes No - BS3G 198 Part 3 11B, CSA C22.2 No. 198.1, IEC 60684-3-212 A&B, MIL SAE-AMS-DTL 23053/5 Class 1, RoHS Compliant, UL 224 VW-1 E48762, VG 95343 Part 5 A&B
RS Stock No. 398-127
BrandRS PRO
£12.862
Each (In a Pack of 5)
Units
50.8mm 25.4mm Black Heat Shrink No 2:1 1.2m Polyolefin Yes No - BS3G 198 Part 3 11B, CSA C22.2 No. 198.1, IEC 60684-3-212 A&B, MIL SAE-AMS-DTL 23053/5 Class 1, RoHS Compliant, UL 224 VW-1 E48762, VG 95343 Part 5 A&B
RS Stock No. 417-7328
BrandRS PRO
£63.80
1 Bag of 20
Bag(s)
50.8mm 25.4mm Black Heat Shrink No 2:1 300mm Polyolefin Yes No - BS3G 198 Part 3 11B, CSA C22.2 No. 198.1, IEC 60684-3-212 A&B, MIL SAE-AMS-DTL 23053/5 Class 1, RoHS Compliant, UL 224 VW-1 E48762, VG 95343 Part 5 A&B
RS Stock No. 483-4144
BrandRS PRO
£9.22
1 Pack of 5
Pack(s)
4.8mm 2.4mm Grey Heat Shrink No 2:1 1.2m Polyolefin Yes No - BS3G 198 Part 3 11B, CSA C22.2 No. 198.1, IEC 60684-3-212 A&B, MIL SAE-AMS-DTL 23053/5 Class 1, RoHS Compliant, UL 224 VW-1 E48762, VG 95343 Part 5 A&B
RS Stock No. 399-934
BrandRS PRO
£1.80
Each (In a Pack of 5)
Units
6.4mm 3.2mm Clear Heat Shrink No 2:1 1.2m Polyolefin No Yes - BS3G 198 Part 3 11B, CSA C22.2 No. 198.1, IEC 60684-3-212 A&B, MIL SAE-AMS-DTL 23053/5 Class 1, RoHS Compliant, UL 224 VW-1 E48762, VG 95343 Part 5 A&B
RS Stock No. 443-4930
BrandRS PRO
£15.30
1 Bag of 20
Bag(s)
6.4mm 3.2mm Clear Heat Shrink No 2:1 300mm Polyolefin No Yes - BS3G 198 Part 3 11B, CSA C22.2 No. 198.1, IEC 60684-3-212 A&B, MIL SAE-AMS-DTL 23053/5 Class 1, RoHS Compliant, UL 224 VW-1 E48762, VG 95343 Part 5 A&B
RS Stock No. 399-912
BrandRS PRO
£1.828
Each (In a Pack of 5)
Units
3.2mm 1.6mm Clear Heat Shrink No 2:1 1.2m Polyolefin No Yes - BS3G 198 Part 3 11B, CSA C22.2 No. 198.1, IEC 60684-3-212 A&B, MIL SAE-AMS-DTL 23053/5 Class 1, RoHS Compliant, UL 224 VW-1 E48762, VG 95343 Part 5 A&B
RS Stock No. 443-4902
BrandRS PRO
£8.80
1 Bag of 20
Bag(s)
3.2mm 1.6mm Clear Heat Shrink No 2:1 300mm Polyolefin No Yes - BS3G 198 Part 3 11B, CSA C22.2 No. 198.1, IEC 60684-3-212 A&B, MIL SAE-AMS-DTL 23053/5 Class 1, RoHS Compliant, UL 224 VW-1 E48762, VG 95343 Part 5 A&B
RS Stock No. 399-906
BrandRS PRO
£1.44
Each (In a Pack of 5)
Units
2.4mm 1.2mm Clear Heat Shrink No 2:1 1.2m Polyolefin No Yes - BS3G 198 Part 3 11B, CSA C22.2 No. 198.1, IEC 60684-3-212 A&B, MIL SAE-AMS-DTL 23053/5 Class 1, RoHS Compliant, UL 224 VW-1 E48762, VG 95343 Part 5 A&B
RS Stock No. 443-4895
BrandRS PRO
£12.45
1 Bag of 20
Bag(s)
2.4mm 1.2mm Clear Heat Shrink No 2:1 300mm Polyolefin No Yes - BS3G 198 Part 3 11B, CSA C22.2 No. 198.1, IEC 60684-3-212 A&B, MIL SAE-AMS-DTL 23053/5 Class 1, RoHS Compliant, UL 224 VW-1 E48762, VG 95343 Part 5 A&B
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