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. 700-4532
BrandRS PRO
kr 14,937
Each
Units
3mm 1mm Black Heat Shrink No 3:1 10 m Polyolefin Yes No - UL
RS Stock No. 450-537
Mfr. Part No.323-20190 MA47-19/6-PO-X-BK
kr 136,33
Each
Units
19mm 6mm Black Heat Shrink Yes 4:1 1 m Cross Linked Polyolefin - - MA47 -
RS Stock No. 170-6298
Mfr. Part No.TFER-1/4-X
kr 175,25
Each
Units
6.4mm 1.6mm Clear Heat Shrink No 3.2:1 1.2 m Teflon Fluoropolymer Yes No TFER ASTM D 876-00, ASTM D2671, Class 5, Def. Stan. 59-97 Type 5B, IEC 60243, Military AMS-DTL-23053/12 Class 3, Raychem RW-2054
RS Stock No. 316-1631
Mfr. Part No.ATUM-8/2-0
kr 154,05
Each
Units
8mm 2mm Black Heat Shrink Yes 4:1 1.2 m Polyolefin Yes No ATUM -
RS Stock No. 398-464
BrandRS PRO
kr 27,61
Each
Units
1.6mm 0.8mm Clear Heat Shrink No 2:1 1.2 m Fluoropolymer Yes No - SAE-AMS-DTL-23053/13
RS Stock No. 177-9252
Mfr. Part No.RNF 3000-9/3-2-2
kr 74,69
Each
Units
9mm 3mm Red Heat Shrink No 3:1 1.2 m Polyolefin Yes No RNF-3000 UL
RS Stock No. 450-547
Mfr. Part No.323-20300 MA47-30/8-PO-X-BK
kr 146,11
Each
Units
30mm 8mm Black Heat Shrink Yes 4:1 1 m Cross Linked Polyolefin - - MA47 -
RS Stock No. 811-2704
Mfr. Part No.MDTA32/7
Brand3M
kr 145,89
Each
Units
32mm 7mm Black Heat Shrink Yes 4.5:1 1 m Polyolefin Yes - MDT-A -
RS Stock No. 515-6760
Mfr. Part No.18051
BrandDymo
kr 438,58
Each
Units
6mm 1.2mm White Heat Shrink No 3:1 1.5 m Polyolefin Yes - DYMO -
RS Stock No. 481-1854
BrandRS PRO
kr 198,73
Each
Units
40mm 13mm Black Heat Shrink Yes 3:1 1.2 m Polyolefin Yes No - AMS-DTL-23053/4 Class 3, RoHS Compliant, UL 224 E75077 CSA C22.2 No.198.1
RS Stock No. 700-4548
BrandRS PRO
kr 118,17
1 Reel of 4 Metre(s)
Reel(s)
12mm 4mm Black Heat Shrink No 3:1 4 m Polyolefin Yes No - UL
RS Stock No. 450-531
Mfr. Part No.323-20120 MA47-12/3-PO-X-BK
kr 76,53
Each
Units
12mm 3mm Black Heat Shrink Yes 4:1 1 m Cross Linked Polyolefin - - MA47 -
RS Stock No. 639-3774
Mfr. Part No.321-20900 HA47-105/30-PO-X-BK
kr 653,59
Each
Units
105mm 30mm Black Heat Shrink Yes 3.5:1 1 m Cross Linked Polyolefin - - TREDUX-HA47 -
RS Stock No. 396-4626
Mfr. Part No.RNF-100-1/4-0-SP
kr 1 390,45
1 Reel of 75
Reel(s)
6.4mm 3.2mm Black Heat Shrink No 2:1 75 m Polyolefin No No RNF-100 -
RS Stock No. 170-6406
Mfr. Part No.RNF-100-1/4-0-STK
kr 29,35
Each
Units
6.4mm 3.2mm Black Heat Shrink No 2:1 1.2 m Polyolefin No No RNF-100 -
RS Stock No. 700-4589
BrandRS PRO
kr 173,83
1 Reel of 7 Metre(s)
Reel(s)
6mm 2mm Green, Yellow Heat Shrink No 3:1 7 m Polyolefin Yes No - UL
RS Stock No. 700-4466
BrandRS PRO
kr 171,77
1 Reel of 3 Metre(s)
Reel(s)
24mm 8mm Clear Heat Shrink No 3:1 3 m Polyolefin No No - UL
RS Stock No. 700-4545
BrandRS PRO
kr 168,40
1 Reel of 3 Metre(s)
Reel(s)
24mm 8mm Black Heat Shrink No 3:1 3 m Polyolefin Yes No - UL
RS Stock No. 450-565
Mfr. Part No.323-10120 MU47-12/3-PO-X-BK
kr 67,29
Each
Units
12mm 3mm Black Heat Shrink - 4:1 1 m Cross Linked Polyolefin - - MU47 -
RS Stock No. 700-4582
BrandRS PRO
kr 19,949
Each
Units
3mm 1mm Green, Yellow Heat Shrink No 3:1 - Polyolefin Yes No - UL