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. 894-7982
Mfr. Part No.Versafit-1/2-0-SP-SM
TWD6,878.00
1 Reel of 45 Metre(s)
Reel(s)
12.7mm 6.4mm Black Heat Shrink No 2:1 45 m Polyolefin No No VERSAFIT AMS-DTL-23053/5, CSA, E35586 VW-1, LR31929 VW-1, MIL-DTL-23053/5, MIL-I-23053/5, RoHS Complaint, RW-3009, UL Recognisation
RS Stock No. 157-3789
Mfr. Part No.CGAT-3/1-0-RS-157-3789
TWD206.00
Each
units
3mm 1mm Black Heat Shrink Yes 3:1 1.2 m Polyolefin Yes No CGAT E85381
RS Stock No. 700-4548
BrandRS PRO
TWD417.00
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. 448-263
Mfr. Part No.901-10158
TWD693.00
1 Reel of 5 Metre(s)
Reel(s)
9mm 3mm Black Heat Shrink - 3:1 5 m Cross Linked Polyolefin Yes - HIS-3 -
RS Stock No. 839-5457
Mfr. Part No.F2213/64 BK103
BrandAlpha Wire
TWD905.00
1 Box of 25 Metre(s)
Box(es)
1.1mm 0.58mm Black Heat Shrink No 2:1 1.2 m Cross Linked Polyolefin Yes No FIT-221 CSA, UL
RS Stock No. 241-7466
BrandRS PRO
TWD246.00
Each
units
12.7mm 4mm 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. 839-5494
Mfr. Part No.F2211/2 BK066
BrandAlpha Wire
TWD41.90
Each (In a Pack of 14)
units
12.7mm 6.35mm Black Heat Shrink No 2:1 152 mm Cross Linked Polyolefin Yes No FIT-221 CSA, UL
RS Stock No. 839-5463
Mfr. Part No.F2213/32 BK061
BrandAlpha Wire
TWD18.50
Each
units
2.3mm 1.17mm Black Heat Shrink No 2:1 152 mm Cross Linked Polyolefin Yes No FIT-221 CSA, UL
RS Stock No. 241-7472
BrandRS PRO
TWD259.00
Each
units
12.7mm 4mm 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. 211-6292
BrandRS PRO
TWD5,621.00
1 Bag of 5
Bag(s)
38.1mm 19.1mm Black Heat Shrink No 2:1 1.2 m Polyolefin Yes Yes - BS3G 198 Part 3 Type 15, DEF 59-97 Issue3 Type 8, E1042-A6-March 2002, IEC 60684-3-216 Type C, RoHS Compliant
RS Stock No. 700-4719
BrandRS PRO
TWD593.00
1 Reel of 6 Metre(s)
Reel(s)
9.5mm 4.8mm Yellow Heat Shrink No 2:1 6 m Polyolefin Yes No - UL
RS Stock No. 170-6563
Mfr. Part No.RNF-100-3/64-X-STK
TWD74.00
Each
units
1.2mm 0.6mm Clear Heat Shrink No 2:1 1.2 m Polyolefin Yes No RNF-100 -
RS Stock No. 267-2118
BrandRS PRO
TWD276.00
1 Bag of 1
Bag(s)
9.5mm 4.8mm Blue Heat Shrink No 2:1 1.2 m Polyolefin Yes Yes - BS3G 198 Part 3 Type 15, DEF 59-97 Issue3 Type 8, E1042-A6-March 2002, IEC 60684-3-216 Type C, RoHS Compliant
RS Stock No. 234-4936
Mfr. Part No.RNF 3000-6/2-2
TWD188.00
Each
units
6mm 2mm Red Heat Shrink No 3:1 1.2 m Polyolefin Yes No RNF-3000 UL
RS Stock No. 639-3673
Mfr. Part No.323-50500 TREDUX-MA47-50/16-PO-X-BK (2)
TWD1,117.00
Each
units
50mm 16mm Black Heat Shrink Yes 4:1 1 m Cross Linked Polyolefin - - TREDUX-MA47 -
RS Stock No. 448-657
Mfr. Part No.901-10175
TWD1,288.00
1 Reel of 5 Metre(s)
Reel(s)
18mm 6mm Black Heat Shrink - 3:1 5 m Cross Linked Polyolefin Yes - TF31 -
RS Stock No. 194-6406
Mfr. Part No.311-05089
TWD2,962.10
Each (In a Bag of 10)
units
50.8mm 25.4mm Clear Heat Shrink - 2:1 1.2 m Polyvinylidene Fluoride - - TK20 -
RS Stock No. 241-7602
BrandRS PRO
TWD1,032.00
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. 341-6026
Mfr. Part No.RNF-100-3/4-6-STK
TWD182.00
Each
units
19mm 9.5mm Blue Heat Shrink No 2:1 1.2 m Polyolefin Yes No RNF-100 -
RS Stock No. 839-5498
Mfr. Part No.F2211/2 BK105
BrandAlpha Wire
TWD693.00
1 Box of 5
Box(es)
12.7mm 6.35mm Black Heat Shrink No 2:1 1.2 m Cross Linked Polyolefin Yes No FIT-221 CSA, UL