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. 487-3852
BrandRS PRO
€64.35
Each
units
Assorted Assorted Assorted Heat Shrink Yes 2:1, 3:1 Assorted Lengths Polyolefin Yes - - RoHS Compliant
RS Stock No. 700-4535
BrandRS PRO
€16.38
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. 711-4783
Mfr. Part No.380-03005 SHRINKIT 321 UNIVERSAL BASIC-PO-X-MIX
€36.56
Each
units
3 mm, 6 mm, 9 mm, 12 mm, 18 mm Assortiment Black, Blue, Green/Yellow, Red, White Heat Shrink No 3:1 35 mm Cross Linked Polyolefin Yes - - -
RS Stock No. 700-4532
BrandRS PRO
€15.60
1 Reel of 10 Metre(s)
Reel(s)
3mm 1mm Black Heat Shrink No 3:1 10 m Polyolefin Yes No - UL
RS Stock No. 397-679
BrandRS PRO
€93.57
Each
units
2.4 mm, 3 mm, 3.2 mm, 4.8 mm, 6.4 mm, 9.5 mm, 12.7 mm Assortiment Black, Blue, Brown, Green/Yellow, Red, White, Yellow Heat Shrink Yes 2:1, 3:1 - Polyolefin Yes - - RoHS Compliant
RS Stock No. 700-4548
BrandRS PRO
€14.30
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. 700-4539
BrandRS PRO
€15.28
1 Reel of 5 Metre(s)
Reel(s)
9mm 3mm Black Heat Shrink No 3:1 5 m Polyolefin Yes No - UL
RS Stock No. 487-4451
Mfr. Part No.RNF-100-COL-KIT2
€117.00
Each
units
25.4mm 12.7mm - Heat Shrink No 2:1 Longueurs assorties Cross Linked Polyolefin Yes No RNF-100 -
RS Stock No. 157-3795
Mfr. Part No.CGAT-6/2-0
€7.15
Each
units
6mm 2mm Black Heat Shrink Yes 3:1 1.2 m Polyolefin Yes No CGAT E85381
RS Stock No. 157-3824
Mfr. Part No.CGAT-18/6-0
€11.12
Each
units
18mm 6mm Black Heat Shrink Yes 3:1 1.2 m Polyolefin Yes No CGAT E85381
RS Stock No. 157-3818
Mfr. Part No.CGAT-12/4-0
€6.05
Each
units
12mm 4mm Black Heat Shrink Yes 3:1 1.2 m Polyolefin Yes No CGAT E85381
RS Stock No. 562-678
BrandRS PRO
€9.88
1 Bag of 1
Bag(s)
9mm 3mm 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
RS Stock No. 157-3880
Mfr. Part No.DWTC-16/4-X-STK
€14.77
Each
units
16mm 4mm Clear Heat Shrink Yes 4:1 1.2 m Polyolefin No No DWTC -
RS Stock No. 443-4946
BrandRS PRO
€15.60
1 Bag of 20
Bag(s)
9.5mm 4.8mm 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. 399-940
BrandRS PRO
€14.09
1 Pack of 5
Pack(s)
9.5mm 4.8mm 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. 515-6760
Mfr. Part No.18051
BrandDymo
€39.41
Each
units
6mm 1.2mm White Heat Shrink No 3:1 1.5 m Polyolefin Yes - DYMO -
RS Stock No. 157-3874
Mfr. Part No.DWTC-12/3-X-STK
€13.73
Each
units
12mm 3mm Clear Heat Shrink Yes 4:1 1.2 m Polyolefin No No DWTC -
RS Stock No. 515-6805
Mfr. Part No.18054
BrandDymo
€42.65
Each
units
9mm 1.7mm Yellow Heat Shrink No 3:1 1.5 m Polyolefin Yes - DYMO -
RS Stock No. 700-4453
BrandRS PRO
€15.60
1 Reel of 10 Metre(s)
Reel(s)
3mm 1mm Clear Heat Shrink No 3:1 10 m Polyolefin No No - UL
RS Stock No. 700-4620
BrandRS PRO
€9.88
1 Reel of 10 Metre(s)
Reel(s)
1.6mm 0.8mm Black Heat Shrink No 2:1 10 m Polyolefin Yes No - UL
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