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. 341-5944
Mfr. Part No.RNF-100-1/4-2-STK
TWD131.00
Each
units
6.4mm 3.2mm Red Heat Shrink No 2:1 1.2 m Polyolefin Yes No RNF-100 -
RS Stock No. 808-7800
Mfr. Part No.RMW-50/16-1200/ADH-0
TWD530.00
Each
units
50mm 16mm Black Heat Shrink Yes 3:1 1.2 m Polyolefin No No RMW UL
RS Stock No. 914-6883
Mfr. Part No.309-35083 TF24-50.8/25.4-PO-X-CL (60)
TWD38,062.00
1 Reel of 60 Metre(s)
Reel(s)
50.8mm 25.4mm Clear Heat Shrink - 2:1 60 m Polyolefin - Yes TF24 DEF STAN, SAE, VG
RS Stock No. 397-887
BrandRS PRO
TWD64.20
Each (In a Pack of 5)
units
2.4mm 1.2mm Blue Heat Shrink No 2:1 1.2 m Polyolefin Yes No - -
RS Stock No. 241-7501
BrandRS PRO
TWD361.00
Each
units
19mm 6mm Blue 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. 366-2869
Mfr. Part No.DSPL-NR2-X-50MM
TWD371.00
1 Bag of 100
Bag(s)
7.4mm 1.65mm Clear Heat Shrink Yes 4:1 50 mm Polyolefin Yes No DSPL -
RS Stock No. 443-4980
BrandRS PRO
TWD2,945.00
1 Bag of 20
Bag(s)
38.1mm 19.1mm 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. 914-6887
Mfr. Part No.309-40123 TF24-1.2/0.6-PO-X-CL (100)
TWD5,384.00
1 Reel of 100 Metre(s)
Reel(s)
1.2mm 0.6mm Clear Heat Shrink - 2:1 100 m Polyolefin - Yes TF24 DEF STAN, SAE, VG
RS Stock No. 342-7278
Mfr. Part No.CRN-3/64-0-STK
TWD123.00
Each
units
1.2mm 0.6mm Black Heat Shrink No 2:1 1.2 m Polyolefin Yes No CRN -
RS Stock No. 179-3280
Mfr. Part No.553-30950 TCGT9-3YE-PO-X-YE
TWD3,669.00
1 Reel of 18 Metre(s)
Reel(s)
9mm 3mm Yellow Heat Shrink - 3:1 72000 mm - - No - -
RS Stock No. 618-9402
Mfr. Part No.HFT5000-20/10-0
TWD79.30
Each
units
20mm 10mm Black Heat Shrink No 2:1 10 m PE/PET Yes Yes HFT5000 -
RS Stock No. 170-6513
Mfr. Part No.RNF-100-3/8-9-STK
TWD135.00
Each
units
9.5mm 4.8mm White Heat Shrink No 2:1 1.2 m Polyolefin Yes No RNF-100 -
RS Stock No. 397-893
BrandRS PRO
TWD73.80
Each (In a Pack of 5)
units
3.2mm 1.6mm Blue Heat Shrink No 2:1 1.2 m Polyolefin Yes No - -
RS Stock No. 177-9325
Mfr. Part No.RNF 3000-18/6-4
TWD345.00
Each
units
18mm 6mm Yellow Heat Shrink No 3:1 1.2 m Polyolefin Yes No RNF-3000 UL
RS Stock No. 177-9224
Mfr. Part No.RNF 3000-3/1-5-2
TWD168.00
Each
units
3mm 1mm Green Heat Shrink No 3:1 1.2 m Polyolefin Yes No RNF-3000 UL
RS Stock No. 241-7517
BrandRS PRO
TWD361.00
Each
units
19mm 6mm 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. 399-928
BrandRS PRO
TWD75.60
Each (In a Pack of 5)
units
4.8mm 2.4mm 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. 202-7710
Mfr. Part No.BSTS-27X4
TWD905.00
Each
units
65.5mm 22.86mm Black Heat Shrink No 3:1 1.2 m Polymer No No BSTS -
RS Stock No. 848-9145
Mfr. Part No.HT-200-3/4-X-STK-CS-34128
TWD1,749.00
Each
units
19mm 9.53mm 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. 449-165
Mfr. Part No.300-73040 TCN20-3.2/1.6-PO-X-BK
TWD355.00
1 Reel of 5 Metre(s)
Reel(s)
3.2mm 1.6mm Black Heat Shrink - 2:1 5 m Cross Linked Polyolefin Yes - TCN20 -