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. 821-4787
Mfr. Part No.F2211/8 GR002
BrandAlpha Wire
TWD5,198.00
1 Reel of 152 Metre(s)
Reel(s)
3.1mm 2mm Green Heat Shrink No 2:1 152 m Polyolefin - No FIT-221 CSA, UL
RS Stock No. 821-4771
Mfr. Part No.F2211/8 BK002
BrandAlpha Wire
TWD5,179.00
1 Reel of 152 Metre(s)
Reel(s)
3.1mm 2mm Black Heat Shrink No 2:1 152 m Polyolefin - No FIT-221 CSA, UL
RS Stock No. 839-5479
Mfr. Part No.F2211/8 BK103
BrandAlpha Wire
TWD1,108.00
1 Box of 25
Box(es)
3.1mm 1.57mm Black Heat Shrink No 2:1 152 mm Cross Linked Polyolefin Yes No FIT-221 CSA, UL
RS Stock No. 839-5460
Mfr. Part No.F2211/8 BK062
BrandAlpha Wire
TWD21.20
Each
units
3.1mm 1.57mm Black Heat Shrink No 2:1 152 mm Cross Linked Polyolefin Yes No FIT-221 CSA, UL
RS Stock No. 821-4941
Mfr. Part No.F22111/2 CL015
BrandAlpha Wire
TWD7,971.00
1 Reel of 38 Metre(s)
Reel(s)
38.1mm 19mm Clear Heat Shrink No 2:1 38 m Polyolefin - No FIT-221 CSA, UL
RS Stock No. 181-8990
Mfr. Part No.F6007/8 BK005
BrandAlpha Wire
TWD411,508.00
1 Reel of 30 Metre(s)
Reel(s)
22.23mm 12.7mm Black Heat Shrink - 2:1 30.5 m Chlorinated Polyolefin Yes - FIT-600 AMS-DTL-23053/1 Class 1 & 2, EC 1907/2006, EU Directive 2011/65
RS Stock No. 181-8991
Mfr. Part No.F6007/8 BK008
BrandAlpha Wire
TWD31,749.00
1 Reel of 7 Metre(s)
Reel(s)
22.23mm 12.7mm Black Heat Shrink - 2:1 7.6 m Chlorinated Polyolefin Yes - FIT-600 AMS-DTL-23053/1 Class 1 & 2, EC 1907/2006, EU Directive 2011/65
RS Stock No. 839-5498
Mfr. Part No.F2211/2 BK105
BrandAlpha Wire
TWD693.00
1 Box of 5
Box(es)
12.7mm 6.35mm Black Heat Shrink No 2:1 1.2 m Cross Linked Polyolefin Yes No FIT-221 CSA, UL
RS Stock No. 188-4934
Mfr. Part No.F60011/4 BK005
BrandAlpha Wire
TWD28,785.00
1 Reel of 30 Metre(s)
Reel(s)
0.857in 0.714in Black Heat Shrink - 2:1 150 ft Chlorinated Polyolefin Yes - FIT–600 -
RS Stock No. 817-9050
Mfr. Part No.F221L1/16 BK001
BrandAlpha Wire
TWD23,458.00
1 Reel of 304 Metre(s)
Reel(s)
1.6mm 1mm Black Heat Shrink - 2:1 304.8 m LSZH Polyolefin - - FIT-221L -
RS Stock No. 821-4730
Mfr. Part No.F2211/16 BK001
BrandAlpha Wire
TWD7,731.00
1 Reel of 305 Metre(s)
Reel(s)
1.6mm 1mm Black Heat Shrink No 2:1 305 m Polyolefin - No FIT-221 CSA, UL
RS Stock No. 821-4831
Mfr. Part No.F2211/4 BL003
BrandAlpha Wire
TWD146,615.00
1 Reel of 76 Metre(s)
Reel(s)
6.3mm 3mm Blue Heat Shrink No 2:1 76 m Polyolefin - No FIT-221 CSA, UL
RS Stock No. 821-4774
Mfr. Part No.F2213/32 WH002
BrandAlpha Wire
TWD4,915.00
1 Reel of 152 Metre(s)
Reel(s)
2.3mm 1mm White Heat Shrink No 2:1 152 m Polyolefin - No FIT-221 CSA, UL
RS Stock No. 821-4894
Mfr. Part No.F2213/4 CL003
BrandAlpha Wire
TWD6,005.00
1 Reel of 76 Metre(s)
Reel(s)
19mm 10mm Clear Heat Shrink No 2:1 76 m Polyolefin - No FIT-221 CSA, UL
RS Stock No. 821-4819
Mfr. Part No.F2213/16 GR002
BrandAlpha Wire
TWD6,311.00
1 Reel of 152 Metre(s)
Reel(s)
4.7mm 2mm Green Heat Shrink No 2:1 152 m Polyolefin - No FIT-221 CSA, UL
RS Stock No. 839-5501
Mfr. Part No.F2213/4 BK105
BrandAlpha Wire
TWD1,416.00
1 Box of 5
Box(es)
19mm 9.53mm Black Heat Shrink No 2:1 1.2 m Cross Linked Polyolefin Yes No FIT-221 CSA, UL
RS Stock No. 821-4761
Mfr. Part No.F2213/32 GR002
BrandAlpha Wire
TWD4,897.00
1 Reel of 152 Metre(s)
Reel(s)
2.3mm 1mm Green Heat Shrink No 2:1 152 m Polyolefin - No FIT-221 CSA, UL
RS Stock No. 181-8967
Mfr. Part No.F6001/2 BK008
BrandAlpha Wire
TWD5,927.00
1 Reel of 7 Metre(s)
Reel(s)
12.7mm 7.26mm Black Heat Shrink - 2:1 7.6 m Chlorinated Polyolefin Yes - FIT-600 AMS-DTL-23053/1 Class 1 & 2, EC 1907/2006, EU Directive 2011/65
RS Stock No. 821-4733
Mfr. Part No.F2211/16 CL001
BrandAlpha Wire
TWD1,292,657.00
1 Reel of 305 Metre(s)
Reel(s)
1.6mm 1mm Clear Heat Shrink No 2:1 305 m Polyolefin - No FIT-221 CSA, UL
RS Stock No. 821-4897
Mfr. Part No.F2211/2 YL016
BrandAlpha Wire
TWD79,132.00
1 Reel of 46 Metre(s)
Reel(s)
12.7mm 6mm Yellow Heat Shrink No 2:1 45 m Polyolefin - No FIT-221 CSA, UL