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. 398-155
BrandRS PRO
MYR24.902
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. 700-4462
BrandRS PRO
MYR46.56
1 Reel of 3 Metre(s)
Reel(s)
18mm 6mm Clear Heat Shrink No 3:1 3m Polyolefin No No - UL
RS Stock No. 398-414
BrandRS PRO
MYR21.68
Each
units
9.5mm 4.8mm Clear Heat Shrink No 2:1 1.2m Fluoropolymer Yes No - SAE-AMS-DTL-23053/13
RS Stock No. 666-852
BrandRS PRO
MYR63.58
1 Box of 25 Metre(s)
Box(es)
1.6mm 0.8mm Black Heat Shrink No 2:1 25m Polyolefin Yes No - RoHS Compliant, UL
RS Stock No. 399-619
BrandRS PRO
MYR7.116
Each (In a Pack of 5)
units
9.5mm 4.8mm Yellow 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. 417-7211
BrandRS PRO
MYR37.08
1 Bag of 20 Metre(s)
Bag(s)
1.6mm 0.8mm 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. 700-4469
BrandRS PRO
MYR37.26
1 Reel of 4 Metre(s)
Reel(s)
12mm 4mm Clear Heat Shrink No 3:1 4m Polyolefin No No - UL
RS Stock No. 397-938
BrandRS PRO
MYR6.874
Each (In a Pack of 5)
units
12.7mm 6.4mm Blue Heat Shrink No 2:1 1.2m Polyolefin Yes No - -
RS Stock No. 398-228
BrandRS PRO
MYR4.624
Each
units
1.6mm 0.8mm Black Heat Shrink No 2:1 1.2m Polyolefin Yes No - -
RS Stock No. 700-4532
BrandRS PRO
MYR57.60
1 Reel of 10 Metre(s)
Reel(s)
3mm 1mm Black Heat Shrink No 3:1 10m Polyolefin Yes No - UL
RS Stock No. 397-916
BrandRS PRO
MYR4.196
Each (In a Pack of 5)
units
6.4mm 3.2mm Blue Heat Shrink No 2:1 1.2m Polyolefin Yes No - -
RS Stock No. 241-7315
BrandRS PRO
MYR23.63
Each
units
3mm 1mm Yellow 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. 399-518
BrandRS PRO
MYR5.136
Each (In a Pack of 5)
units
4.8mm 2.4mm Yellow 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. 399-524
BrandRS PRO
MYR5.602
Each (In a Pack of 5)
units
6.4mm 3.2mm Yellow 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. 398-464
BrandRS PRO
MYR23.11
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. 443-4968
BrandRS PRO
MYR76.10
1 Bag of 20
Bag(s)
19.1mm 9.5mm 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. 398-262
BrandRS PRO
MYR23.636
Each (In a Pack of 5)
units
19.1mm 9.5mm Red Heat Shrink No 2:1 1.2m Polyolefin Yes No - -
RS Stock No. 398-256
BrandRS PRO
MYR33.77
Each (In a Pack of 5)
units
25.4mm 12.7mm Red Heat Shrink No 2:1 1.2m Polyolefin Yes No - -
RS Stock No. 398-054
BrandRS PRO
MYR12.012
Each (In a Pack of 5)
units
12.7mm 6.4mm Green/Yellow 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. 399-962
BrandRS PRO
MYR19.914
Each (In a Pack of 5)
units
19.1mm 9.5mm 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
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