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. 763-0958
Mfr. Part No.450-20010 RMS 52-15-PO-X-BK (250.0)
$32.63
Each
units
52mm 15mm Black Heat Shrink Yes 4.5:1 250 mm POX - - RMS -
RS Stock No. 712-3605
Mfr. Part No.308-30165 HIS-3-BAG-1.5/0.5-PO-X-GNYE (10)
$16.14
1 Bag of 10
Bag(s)
1.5mm 0.5mm Green/Yellow Heat Shrink - 3:1 200 mm Cross Linked Polyolefin Yes - HIS-3 BAG -
RS Stock No. 170-6692
Mfr. Part No.CGPT-R-3.2-0
$36.87
1 Reel of 10 Metre(s)
Reel(s)
3.2mm 1.6mm Black Heat Shrink No 2:1 10 m Polyolefin Yes Yes CGPT -
RS Stock No. 700-4535
BrandRS PRO
$21.20
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. 157-3789
Mfr. Part No.CGAT-3/1-0-RS-157-3789
$10.10
Each
units
3mm 1mm Black Heat Shrink Yes 3:1 1.2 m Polyolefin Yes No CGAT E85381
RS Stock No. 396-4632
Mfr. Part No.RNF-100-3/8-0-FSP
$271.92
1 Reel of 121
Reel(s)
9.5mm 4.8mm Black Heat Shrink No 2:1 121 m Polyolefin Yes No RNF-100 -
RS Stock No. 170-6412
Mfr. Part No.RNF-100-3/8-0-STK
$7.20
Each
units
9.5mm 4.8mm Black Heat Shrink No 2:1 1.2 m Polyolefin No No RNF-100 -
RS Stock No. 894-7884
Mfr. Part No.RNF-100-3/32-0-SP
$611.52
1 Reel of 300
Reel(s)
2.4mm 1.2mm Black Heat Shrink No 2:1 300 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. 894-7893
Mfr. Part No.RNF-100-3/8-0-SP
$401.31
1 Reel of 150
Reel(s)
9.5mm 4.8mm Black Heat Shrink No 2:1 150 m Polyolefin No 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. 170-6377
Mfr. Part No.RNF-100-3/32-0-STK
$2.91
Each
units
2.4mm 1.2mm Black Heat Shrink No 2:1 1.2 m Polyolefin No No RNF-100 -
RS Stock No. 484-8941
Mfr. Part No.HFT5000-50/25.0
$41.24
1 Bag of 5
Bag(s)
50mm 25mm Black Heat Shrink No 2:1 5 m PE/PET Yes Yes HFT5000 -
RS Stock No. 241-7602
BrandRS PRO
$51.47
Each
units
40mm 13mm Red 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. 515-5565
Mfr. Part No.18055
BrandDymo
$91.60
Each
units
12mm 3mm White Heat Shrink No 3:1 1.5 m Polyolefin Yes - DYMO -
RS Stock No. 417-9087
BrandRS PRO
$301.69
1 Kit
Kit(s)
3mm 1.5mm Blue, Red, White, Yellow Heat Shrink Yes 3:1 Assortiment Polyolefin Yes No - CSA C22.2 No. 198.1, IEC 60684-3-242, MIL SAE-AMS-DTL 23053/4 Class 3, RoHS Compliant, UL 224 E75077
RS Stock No. 487-4451
Mfr. Part No.RNF-100-COL-KIT2
$213.03
Each
units
25.4mm 12.7mm - Heat Shrink No 2:1 Longueurs assorties Cross Linked Polyolefin Yes No RNF-100 -
RS Stock No. 341-6054
Mfr. Part No.RNF-100-1-6-STK
$15.97
Each
units
25.4mm 12.7mm Blue Heat Shrink No 2:1 1.2 m Polyolefin Yes No RNF-100 -
RS Stock No. 700-4595
BrandRS PRO
$19.36
1 Reel of 5 Metre(s)
Reel(s)
9mm 3mm Green/Yellow Heat Shrink No 3:1 5 m Polyolefin Yes No - UL
RS Stock No. 487-4221
Mfr. Part No.LBC-TYC-BS7671
$12.12
1 Bag of 10
Bag(s)
- - Black - No - - Vinyl Yes No - -
RS Stock No. 700-4548
BrandRS PRO
$20.19
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. 562-656
BrandRS PRO
$73.55
1 Bag of 1
Bag(s)
40mm 13mm Black Heat Shrink Yes 3:1 1.2 m Polyolefin Yes Yes - ASTM, BS 6853, BSS 7239, LUL E 1042. A6, RoHS Compliant, SAE-AMS-DTL-23053
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