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庫存編號 821-4991
製造零件編號FITFAB-1 BK007
BrandAlpha Wire
HK$1,139.39
毎卷:15 米
Reel(s)
11.9mm 6mm Black Heat Shrink No 2:1 15 m Polyethylene/Polyester Yes Yes FIT-FABRIC UL
RS庫存編號 839-5463
製造零件編號F2213/32 BK061
BrandAlpha Wire
HK$4.986
單位
2.3mm 1.17mm Black Heat Shrink No 2:1 152 mm Cross Linked Polyolefin Yes No FIT-221 CSA, UL
RS庫存編號 821-4755
製造零件編號F2213/32 BK002
BrandAlpha Wire
HK$1,317.00
毎卷:152 米
Reel(s)
2.3mm 1mm Black Heat Shrink No 2:1 152 m Polyolefin - No FIT-221 CSA, UL
RS庫存編號 839-5466
製造零件編號F2213/32 BK103
BrandAlpha Wire
HK$282.03
毎盒:25 個
Box(es)
2.3mm 1.17mm Black Heat Shrink No 2:1 1.2 m Cross Linked Polyolefin Yes No FIT-221 CSA, UL
RS庫存編號 821-4761
製造零件編號F2213/32 GR002
BrandAlpha Wire
HK$1,317.00
毎卷:152 米
Reel(s)
2.3mm 1mm Green Heat Shrink No 2:1 152 m Polyolefin - No FIT-221 CSA, UL
RS庫存編號 821-4939
製造零件編號F2211IN YL003
BrandAlpha Wire
HK$2,255.53
毎卷:76 米
Reel(s)
25.4mm 13mm Yellow Heat Shrink No 2:1 76 m Polyolefin - No FIT-221 CSA, UL
RS庫存編號 817-9081
製造零件編號F221L3/4 BK004
BrandAlpha Wire
HK$163,138.51
毎卷:61 米
Reel(s)
19mm 10mm Black Heat Shrink - 2:1 60.9 m LSZH Polyolefin - - FIT-221L -
RS庫存編號 821-4941
製造零件編號F22111/2 CL015
BrandAlpha Wire
HK$2,135.71
毎卷:38 米
Reel(s)
38.1mm 19mm Clear Heat Shrink No 2:1 38 m Polyolefin - No FIT-221 CSA, UL
RS庫存編號 839-5514
製造零件編號F2211IN BK105
BrandAlpha Wire
HK$234.29
毎盒:5 個
Box(es)
25.4mm 12.7mm Black Heat Shrink No 2:1 1.2 m Cross Linked Polyolefin Yes No FIT-221 CSA, UL
RS庫存編號 181-8967
製造零件編號F6001/2 BK008
BrandAlpha Wire
HK$1,593.82
毎卷:7 米
Reel(s)
12.7mm 7.26mm Black Heat Shrink - 2:1 7.6 m Chlorinated Polyolefin Yes - FIT-600 AMS-DTL-23053/1 Class 1 & 2, EC 1907/2006, EU Directive 2011/65
RS庫存編號 821-4973
製造零件編號F2601 GY005
BrandAlpha Wire
HK$4,087.28
毎卷:30 米
Reel(s)
25.4mm 13mm Green Heat Shrink No 2:1 30 m Polyolefin - No FIT-260 CSA, UL
RS庫存編號 821-4733
製造零件編號F2211/16 CL001
BrandAlpha Wire
HK$340,954.96
毎卷:305 米
Reel(s)
1.6mm 1mm Clear Heat Shrink No 2:1 305 m Polyolefin - No FIT-221 CSA, UL
RS庫存編號 821-4800
製造零件編號F2213/16 BL002
BrandAlpha Wire
HK$122,104.76
毎卷:152 米
Reel(s)
4.7mm 2mm Blue Heat Shrink No 2:1 152 m Polyolefin - No FIT-221 CSA, UL
RS庫存編號 821-4901
製造零件編號F2213/4 RD003
BrandAlpha Wire
HK$65,001.03
毎卷:76 米
Reel(s)
19mm 10mm Red Heat Shrink No 2:1 76 m Polyolefin - No FIT-221 CSA, UL
RS庫存編號 821-4705
製造零件編號F221MS/2 BK032
BrandAlpha Wire
HK$301.54
單位
6.35 mm, 9.53 mm, 12.7 mm, 19.05 mm 3 mm, 5 mm, 6 mm, 10 mm Black Heat Shrink - 2:1 152 mm Polyolefin - - FIT-221 -
RS庫存編號 181-8973
製造零件編號F60011/2 BK008
BrandAlpha Wire
HK$14,602.15
毎卷:7 米
Reel(s)
38.1mm 21.77mm Black Heat Shrink - 2:1 7.6 m Chlorinated Polyolefin Yes - FIT-600 AMS-DTL-23053/1 Class 1 & 2, EC 1907/2006, EU Directive 2011/65
RS庫存編號 821-4806
製造零件編號F2213/16 CL002
BrandAlpha Wire
HK$1,691.10
毎卷:152 米
Reel(s)
4.7mm 2mm Clear Heat Shrink No 2:1 152 m Polyolefin - No FIT-221 CSA, UL
RS庫存編號 839-5505
製造零件編號F2211IN BK069
BrandAlpha Wire
HK$22.564
/個 (每包:8個)
單位
25.4mm 12.7mm Black Heat Shrink No 2:1 152 mm Cross Linked Polyolefin Yes No FIT-221 CSA, UL
RS庫存編號 821-4743
製造零件編號F2211/16 WH001
BrandAlpha Wire
HK$340,954.96
毎卷:305 米
Reel(s)
1.6mm 1mm White Heat Shrink No 2:1 305 m Polyolefin - No FIT-221 CSA, UL
RS庫存編號 821-4828
製造零件編號F2211/4 BK003
BrandAlpha Wire
HK$1,171.38
毎卷:76 米
Reel(s)
6.3mm 3mm Black Heat Shrink No 2:1 76 m Polyolefin - No FIT-221 CSA, UL