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. 244-0826
Mfr. Part No.DR-25-3/8-0-SP
MYR1,721.54
1 Reel of 50 Metre(s)
Reel(s)
9.5mm 4.8mm Black Heat Shrink No 2:1 50 m Elastomer Yes No DR-25 -
RS Stock No. 219-6513
Mfr. Part No.DR-25-3/8-0-10
MYR539.75
1 Reel of 10 Metre(s)
Reel(s)
9.5mm 4.8mm Black Heat Shrink No 2:1 10 m Elastomer Yes No DR-25 -
RS Stock No. 288-5184
Mfr. Part No.RT-375-1/8-X-STK
MYR14.64
Each
units
3.2mm 1.6mm Clear Heat Shrink No 2:1 1.2 m Fluoropolymer Yes No RT-375 -
RS Stock No. 399-934
BrandRS PRO
MYR6.748
Each (In a Pack of 5)
units
6.4mm 3.2mm Clear Heat Shrink No 2:1 1.2 m 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. 443-4930
BrandRS PRO
MYR41.86
1 Bag of 20
Bag(s)
6.4mm 3.2mm Clear Heat Shrink No 2:1 300 mm 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. 501-4199
Mfr. Part No.308-10600 HIS-A-6/2-PO-X-BK (5)
MYR228.86
1 Reel of 5 Metre(s)
Reel(s)
6mm 2mm Black Heat Shrink Yes 3:1 5 m Cross Linked Polyolefin Yes - HIS-A -
RS Stock No. 241-5375
BrandRS PRO
MYR110.15
Each
units
30mm 6mm Black Heat Shrink Yes 3:1 300 mm PEX Yes - - ICEA, NEMA, RoHS Compliant
RS Stock No. 316-1669
Mfr. Part No.ATUM-24/6-0
MYR88.48
Each
units
24mm 6mm Black Heat Shrink Yes 4:1 1.2 m Polyolefin Yes No ATUM -
RS Stock No. 618-9402
Mfr. Part No.HFT5000-20/10-0
MYR201.41
1 Bag of 10 Metre(s)
Bag(s)
20mm 10mm Black Heat Shrink No 2:1 10 m PE/PET Yes Yes HFT5000 -
RS Stock No. 170-6406
Mfr. Part No.RNF-100-1/4-0-STK
MYR11.43
Each
units
6.4mm 3.2mm Black Heat Shrink No 2:1 1.2 m Polyolefin No No RNF-100 -
RS Stock No. 700-4535
BrandRS PRO
MYR58.32
1 Reel of 7 Metre(s)
Reel(s)
6mm 2mm Black Heat Shrink No 3:1 7 m Polyolefin Yes No - UL
RS Stock No. 443-4952
BrandRS PRO
MYR46.06
1 Bag of 20
Bag(s)
12.7mm 6.4mm Clear Heat Shrink No 2:1 300 mm 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. 277-7897
Mfr. Part No.RW-175-1/16-X
MYR19.83
Each
units
1.6mm 0.8mm Clear Heat Shrink No 2:1 1.2 m PVDF Yes No KYNAR -
RS Stock No. 396-4626
Mfr. Part No.RNF-100-1/4-0-SP
MYR485.55
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. 417-7299
BrandRS PRO
MYR81.43
1 Bag of 20
Bag(s)
19.1mm 9.5mm 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. 808-7793
Mfr. Part No.RMW-16/5-1200/ADH-0
MYR29.75
Each
units
16mm 5mm Black Heat Shrink Yes 3:1 1.2 m Polyolefin No No RMW UL
RS Stock No. 894-7871
Mfr. Part No.RNF-100-3/64-0-SP
MYR3,012.05
1 Reel of 600
Reel(s)
1.2mm 0.6mm Black Heat Shrink No 2:1 1.2 m Polyolefin Yes No RNF-100 AMS-DTL-23053/5, CSA, E35586, LR31929, MIL-DTL-23053/5, MIL-I-23053/5, RoHS Complaint, UL Recognisation, VDE 0341 Pt 9005
RS Stock No. 170-6355
Mfr. Part No.RNF-100-3/64-0-STK
MYR8.06
Each
units
1.2mm 0.6mm Black Heat Shrink No 2:1 1.2 m Polyolefin No No RNF-100 -
RS Stock No. 399-956
BrandRS PRO
MYR11.012
Each (In a Pack of 5)
units
12.7mm 6.4mm Clear Heat Shrink No 2:1 1.2 m 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. 398-155
BrandRS PRO
MYR24.176
Each (In a Pack of 5)
units
19.1mm 9.5mm 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
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