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. 700-4725
BrandRS PRO
SGD27.80
1 Reel of 3 Metre(s)
Reel(s)
25.4mm 12.7mm Yellow Heat Shrink No 2:1 3m Polyolefin Yes No - UL
RS Stock No. 398-284
BrandRS PRO
SGD4.498
Each (In a Pack of 5)
units
9.5mm 4.8mm Red Heat Shrink No 2:1 1.2m Polyolefin Yes No - -
RS Stock No. 389-656
BrandRS PRO
SGD64.45
1 Reel of 20 Metre(s)
Reel(s)
4.8mm 2.4mm Black Heat Shrink No 2:1 20m Polyolefin No No - ELV, RoHS Compliant, SFP (R4-0580)
RS Stock No. 417-7227
BrandRS PRO
SGD26.44
1 Bag of 20
Bag(s)
2.4mm 1.2mm 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. 389-684
BrandRS PRO
SGD3.866
Each
units
12.7mm 6.3mm Black Heat Shrink No 2:1 10m Polyolefin No No - ELV, RoHS Compliant, SFP (R4-0580)
RS Stock No. 241-7337
BrandRS PRO
SGD6.60
Each
units
3mm 1mm 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. 666-868
BrandRS PRO
SGD48.51
1 Box of 25
Box(es)
2.4mm 1.2mm Black Heat Shrink No 2:1 25m Polyolefin Yes No - RoHS Compliant, UL
RS Stock No. 398-212
BrandRS PRO
SGD2.896
Each
units
2.4mm 1.2mm 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. 700-4453
BrandRS PRO
SGD2.468
Each
units
3mm 1mm Clear Heat Shrink No 3:1 10m Polyolefin No No - UL
RS Stock No. 417-7299
BrandRS PRO
SGD49.83
1 Bag of 20
Bag(s)
19.1mm 9.5mm 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. 398-149
BrandRS PRO
SGD9.312
Each
units
25.4mm 12.7mm 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. 417-7306
BrandRS PRO
SGD71.49
Each
units
25.4mm 12.7mm 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. 666-931
BrandRS PRO
SGD42.83
1 Box of 3
Box(es)
25.4mm 12.7mm Black Heat Shrink No 2:1 3m Polyolefin Yes No - RoHS Compliant, UL
RS Stock No. 398-155
BrandRS PRO
SGD6.846
Each (In a Pack of 5)
units
19.1mm 9.5mm 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. 417-7283
BrandRS PRO
SGD37.03
1 Bag of 20
Bag(s)
12.7mm 6.4mm 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. 481-1797
BrandRS PRO
SGD9.70
Each
units
6.4mm 2mm Black 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. 666-919
BrandRS PRO
SGD3.649
Each (In a Box of 10)
units
12.7mm 6.4mm Black Heat Shrink No 2:1 10m Polyolefin Yes No - RoHS Compliant, UL
RS Stock No. 481-1826
BrandRS PRO
SGD15.03
Each
units
19mm 6mm Black 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. 398-098
BrandRS PRO
SGD5.394
Each (In a Pack of 5)
units
3.2mm 1.6mm Green 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. 398-161
BrandRS PRO
SGD4.926
Each
units
12.7mm 6.4mm 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