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. 447-395
Mfr. Part No.308-10603 HIS-A-6/2-PO-X-CL (5)
MYR161.09
1 Reel of 5 Metre(s)
Reel(s)
6mm 2mm Clear Heat Shrink Yes 3:1 5 m Cross Linked Polyolefin Yes - HIS-A -
RS Stock No. 487-4221
Mfr. Part No.LBC-TYC-BS7671
MYR44.67
1 Bag of 10
Bag(s)
- - Black - No - - Vinyl Yes No - -
RS Stock No. 515-6805
Mfr. Part No.18054
BrandDymo
MYR202.77
Each
units
9mm 1.7mm Yellow Heat Shrink No 3:1 1.5 m Polyolefin Yes - DYMO -
RS Stock No. 700-4545
BrandRS PRO
MYR55.92
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. 417-7227
BrandRS PRO
MYR37.31
1 Bag of 20 Metre(s)
Bag(s)
2.4mm 1.2mm 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. 398-212
BrandRS PRO
MYR9.626
Each
units
2.4mm 1.2mm 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. 113-2596
Mfr. Part No.RNF 100 KIT
MYR399.67
Each
units
2.4 mm, 3.2 mm, 4.8 mm, 6.4 mm, 9.5 mm Assortiment Black Heat Shrink No 2:1 Longueurs assorties Polyolefin Yes No RNF-100 -
RS Stock No. 666-868
BrandRS PRO
MYR177.66
1 Box of 25 Metre(s)
Box(es)
2.4mm 1.2mm Black Heat Shrink No 2:1 25 m Polyolefin Yes No - RoHS Compliant, UL
RS Stock No. 700-4507
BrandRS PRO
MYR40.83
1 Reel of 3 Metre(s)
Reel(s)
18mm 6mm Blue Heat Shrink No 3:1 3 m Polyolefin Yes No - UL
RS Stock No. 433-0535
Mfr. Part No.ATUM-4.5/1.5-0-STK
MYR35.32
Each
units
4.5mm 1.5mm Black Heat Shrink Yes 3:1 1.2 m Polyolefin Yes No ATUM -
RS Stock No. 848-9173
Mfr. Part No.HT-200-1/2-X-SP-CS-34128
MYR3,963.31
1 Reel of 45
Reel(s)
12.7mm 6.35mm Clear Heat Shrink No 2:1 45 m Fluoropolymer Yes No HT-200 RW-1200, SAE-AMS-DTL-23053/18 Class 3
RS Stock No. 252-7737
Mfr. Part No.VFRS-3/4-0
MYR56.52
1 Reel of 5 Metre(s)
Reel(s)
19mm 9.5mm Black Heat Shrink No 2:1 5 m Polyolefin Yes No VERSAFIT -
RS Stock No. 113-2439
Mfr. Part No.RNF-100-3/4-4-STK
MYR46.05
Each
units
19mm 9.5mm Yellow Heat Shrink No 2:1 1.2 m Polyolefin Yes No RNF-100 -
RS Stock No. 700-4456
BrandRS PRO
MYR37.11
1 Reel of 7 Metre(s)
Reel(s)
6mm 2mm Clear Heat Shrink No 3:1 7 m Polyolefin No No - UL
RS Stock No. 894-7941
Mfr. Part No.RNF-100-3/4-BK-SP
MYR1,327.10
1 Reel of 76
Reel(s)
19.1mm 9.5mm 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. 700-4548
BrandRS PRO
MYR44.11
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. 848-9142
Mfr. Part No.HT-200-1/2-X-STK-CS-34128
MYR137.33
Each
units
12.7mm 6.35mm Clear Heat Shrink No 2:1 1 m Fluoropolymer Yes No HT-200 RW-1200, SAE-AMS-DTL-23053/18 Class 3
RS Stock No. 515-6798
Mfr. Part No.18052
BrandDymo
MYR189.03
Each
units
6mm 1.2mm Yellow Heat Shrink - 3:1 1.5 m Polyolefin Yes - DYMO -
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. 244-0826
Mfr. Part No.DR-25-3/8-0-SP
MYR1,549.39
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 -
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