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. 700-4541
BrandRS PRO
SGD22.92
1 Reel of 3 Metre(s)
Reel(s)
18mm 6mm Black Heat Shrink No 3:1 3 m Polyolefin Yes No - UL
RS Stock No. 170-6383
Mfr. Part No.RNF-100-1/8-0-STK
SGD4.53
Each
units
3.2mm 1.6mm Black Heat Shrink No 2:1 1.2 m Polyolefin No No RNF-100 -
RS Stock No. 344-0675
Mfr. Part No.HTAT-48/13-0-STK
SGD116.07
Each
units
48mm 13mm Black Heat Shrink Yes 4:1 1.2 m Cross Linked Polyolefin Yes No HTAT -
RS Stock No. 417-7255
BrandRS PRO
SGD21.20
1 Bag of 20
Bag(s)
4.8mm 2.4mm Black Heat Shrink No 2:1 300 mm 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. 666-880
BrandRS PRO
SGD79.95
1 Box of 20
Box(es)
4.8mm 2.4mm Black Heat Shrink No 2:1 20 m Polyolefin Yes No - RoHS Compliant, UL
RS Stock No. 398-199
BrandRS PRO
SGD3.584
Each (In a Pack of 5)
units
4.8mm 2.4mm Black Heat Shrink No 2:1 1.2 m 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. 515-6760
Mfr. Part No.18051
BrandDymo
SGD55.81
Each
units
6mm 1.2mm White Heat Shrink No 3:1 1.5 m Polyolefin Yes - DYMO -
RS Stock No. 873-9204
Mfr. Part No.TFER-1-1/4-X-STK
SGD103.87
Each
units
32mm 8.8mm Clear Heat Shrink No 3.2:1 1.2 m PTFE Yes Yes 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. 389-628
BrandRS PRO
SGD60.52
1 Reel of 25 Metre(s)
Reel(s)
1.6mm 0.8mm Black Heat Shrink No 2:1 25 m Polyolefin No No - ELV, RoHS Compliant, SFP (R4-0580)
RS Stock No. 211-6292
BrandRS PRO
SGD265.42
1 Bag of 5
Bag(s)
38.1mm 19.1mm Black Heat Shrink No 2:1 1.2 m Polyolefin Yes Yes - BS3G 198 Part 3 Type 15, DEF 59-97 Issue3 Type 8, E1042-A6-March 2002, IEC 60684-3-216 Type C, RoHS Compliant
RS Stock No. 113-2580
Mfr. Part No.RNF-100-2-X-STK
SGD42.07
Each
units
51mm 25.4mm Clear Heat Shrink No 2:1 1.2 m Polyolefin No No RNF-100 -
RS Stock No. 157-3846
Mfr. Part No.DWTC-4/1-X-STK
SGD13.96
Each
units
4mm 1mm Clear Heat Shrink Yes 4:1 1.2 m Polyolefin No No DWTC -
RS Stock No. 157-3802
Mfr. Part No.CGAT-9/3-0
SGD14.34
Each
units
9mm 3mm Black Heat Shrink Yes 3:1 1.2 m Polyolefin Yes No CGAT E85381
RS Stock No. 344-0653
Mfr. Part No.HTAT-24/6-0-STK
SGD46.70
Each
units
24mm 6mm Black Heat Shrink Yes 4:1 1.2 m Cross Linked Polyolefin Yes No HTAT -
RS Stock No. 450-547
Mfr. Part No.323-20300 MA47-30/8-PO-X-BK
SGD33.59
Each
units
30mm 8mm Black Heat Shrink Yes 4:1 1 m Cross Linked Polyolefin - - MA47 -
RS Stock No. 389-634
BrandRS PRO
SGD69.33
1 Reel of 25 Metre(s)
Reel(s)
2.4mm 1.2mm Black Heat Shrink No 2:1 25 m Polyolefin No No - ELV, RoHS Compliant, SFP (R4-0580)
RS Stock No. 157-3824
Mfr. Part No.CGAT-18/6-0
SGD19.09
Each
units
18mm 6mm Black Heat Shrink Yes 3:1 1.2 m Polyolefin Yes No CGAT E85381
RS Stock No. 396-4660
Mfr. Part No.RNF-100-1-0-FSP
SGD598.54
1 Reel of 60
Reel(s)
25.4mm 12.7mm Black Heat Shrink No 2:1 60 m Polyolefin Yes No RNF-100 -
RS Stock No. 316-1675
Mfr. Part No.ATUM-32/8-0
SGD49.18
Each
units
32mm 8mm Black Heat Shrink Yes 4:1 1.2 m Polyolefin Yes No ATUM -
RS Stock No. 170-6440
Mfr. Part No.RNF-100-1-0-STK
SGD13.59
Each
units
25.4mm 12.7mm Black Heat Shrink No 2:1 1.2 m Polyolefin No No RNF-100 -