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. 821-4730
Mfr. Part No.F2211/16 BK001
BrandAlpha Wire
kr 2 039,36
1 Reel of 305 Metre(s)
Reel(s)
1.6mm 1mm Black Heat Shrink No 2:1 305m Polyolefin - No FIT-221 CSA, UL
RS Stock No. 839-5450
Mfr. Part No.F2211/16 BK060
BrandAlpha Wire
kr 4,331
Each
Units
1.6mm 0.79mm Black Heat Shrink No 2:1 152mm Cross Linked Polyolefin Yes No FIT-221 CSA, UL
RS Stock No. 839-5454
Mfr. Part No.F2211/16 BK103
BrandAlpha Wire
kr 427,11
1 Box of 25
Box(es)
1.6mm 0.79mm Black Heat Shrink No 2:1 1.2m Cross Linked Polyolefin Yes No FIT-221 CSA, UL
RS Stock No. 181-8959
Mfr. Part No.F40024 NA103
BrandAlpha Wire
kr 1 525,41
1 Bag of 25
Bag(s)
0.79mm 0.69mm Natural Heat Shrink - 1.2:1 1.2m FEP Yes - FIT-400 AMS-DTL-23053/11 Class 1, EC 1907/2006, EU Directive 2011/65, UL 94V-0
RS Stock No. 839-5460
Mfr. Part No.F2211/8 BK062
BrandAlpha Wire
kr 5,54
Each
Units
3.1mm 1.57mm Black Heat Shrink No 2:1 152mm Cross Linked Polyolefin Yes No FIT-221 CSA, UL
RS Stock No. 821-4812
Mfr. Part No.F2213/16 RD002
BrandAlpha Wire
kr 1 531,19
1 Reel of 152 Metre(s)
Reel(s)
4.7mm 2mm Red Heat Shrink No 2:1 152m Polyolefin - No FIT-221 CSA, UL
RS Stock No. 839-5514
Mfr. Part No.F2211IN BK105
BrandAlpha Wire
kr 336,09
1 Box of 5
Box(es)
25.4mm 12.7mm Black Heat Shrink No 2:1 1.2m Cross Linked Polyolefin Yes No FIT-221 CSA, UL
RS Stock No. 821-4967
Mfr. Part No.F2603/8 GY003
BrandAlpha Wire
kr 3 549,32
1 Reel of 76 Metre(s)
Reel(s)
9.5mm 5mm Green Heat Shrink No 2:1 76m Polyolefin - No FIT-260 CSA, UL
RS Stock No. 817-9084
Mfr. Part No.F221L1IN BK004
BrandAlpha Wire
kr 6 979,20
1 Reel of 61 Metre(s)
Reel(s)
25.4mm 13mm Black Heat Shrink - 2:1 60.9m LSZH Polyolefin - - FIT-221L -
RS Stock No. 839-5463
Mfr. Part No.F2213/32 BK061
BrandAlpha Wire
kr 4,832
Each
Units
2.3mm 1.17mm Black Heat Shrink No 2:1 152mm Cross Linked Polyolefin Yes No FIT-221 CSA, UL
RS Stock No. 821-4884
Mfr. Part No.F2211/2 RD016
BrandAlpha Wire
kr 834,29
1 Reel of 46 Metre(s)
Reel(s)
12.7mm 6mm Red Heat Shrink No 2:1 45m Polyolefin - No FIT-221 CSA, UL
RS Stock No. 821-4869
Mfr. Part No.F2213/8 RD004
BrandAlpha Wire
kr 849,74
1 Reel of 61 Metre(s)
Reel(s)
9.5mm 5mm Red Heat Shrink No 2:1 60m Polyolefin - No FIT-221 CSA, UL
RS Stock No. 821-4973
Mfr. Part No.F2601 GY005
BrandAlpha Wire
kr 4 097,67
1 Reel of 30 Metre(s)
Reel(s)
25.4mm 13mm Green Heat Shrink No 2:1 30m Polyolefin - No FIT-260 CSA, UL
RS Stock No. 181-8960
Mfr. Part No.F4003 NA112
BrandAlpha Wire
kr 4 577,13
1 Bag of 50
Bag(s)
7.87mm 6.32mm Natural Heat Shrink - 1.2:1 0.6m FEP Yes - FIT-400 AMS-DTL-23053/11 Class 1, EC 1907/2006, EU Directive 2011/65, UL 94V-0
RS Stock No. 821-4932
Mfr. Part No.F2211IN RD003
BrandAlpha Wire
kr 2 230,99
1 Reel of 76 Metre(s)
Reel(s)
25.4mm 13mm Red Heat Shrink No 2:1 76m Polyolefin - No FIT-221 CSA, UL
RS Stock No. 821-4816
Mfr. Part No.F2213/16 WH002
BrandAlpha Wire
kr 1 531,19
1 Reel of 152 Metre(s)
Reel(s)
4.7mm 2mm White Heat Shrink No 2:1 152m Polyolefin - No FIT-221 CSA, UL
RS Stock No. 188-4933
Mfr. Part No.F60011/2 BK005
BrandAlpha Wire
kr 11 892,61
1 Reel of 30 Metre(s)
Reel(s)
1.5in 1.25in Black Heat Shrink - 2:1 150ft Chlorinated Polyolefin Yes - FIT–600 -
RS Stock No. 839-5517
Mfr. Part No.F22111/2 BK070
BrandAlpha Wire
kr 61,874
Each (In a Pack of 5)
Units
38.1mm 19.05mm Black Heat Shrink No 2:1 152mm Cross Linked Polyolefin Yes No FIT-221 CSA, UL
RS Stock No. 839-5472
Mfr. Part No.F2213/16 BK063
BrandAlpha Wire
kr 6,443
Each (In a Pack of 24)
Units
4.7mm 2.36mm Black Heat Shrink No 2:1 152mm Cross Linked Polyolefin Yes No FIT-221 CSA, UL
RS Stock No. 821-4800
Mfr. Part No.F2213/16 BL002
BrandAlpha Wire
kr 1 531,19
1 Reel of 152 Metre(s)
Reel(s)
4.7mm 2mm Blue Heat Shrink No 2:1 152m Polyolefin - No FIT-221 CSA, UL