Heat Shrink Tubing & Sleeves

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Dual-Wall Tubings

Dunbar Dual-Wall Tubings are semi-rigid or flexible, high-shrink-ratio, flame-retardant, and heat-shrinkable polyolefin tubes. These tubings come with an adhesive lining that forms an environmental seal that helps protect against moisture. The dual-wall tubing offers excellent electrical properties and high resistance to abrasion, chemicals, and oils. These dual-wall tubings are UL VW-1 (Jacket only) flammable and comply with RoHS and REACH. The dual-wall tubings can be used to seal and protect a wide variety of electrical applications, including wire splices, breakouts, and connectors-to-cable transitions.

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Part #

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 1-1/2in Red 4ft SAE AS23053/4-305-2, QPL listed

3635W-1-1/2-RED-4FT
Dunbar
1: €26.21
25In Stock
New At Mouser

Mfr. Part No.
3635W-1-1/2-RED-4FT

Mouser Part No
15-3635W-1-12-RED4FT

New At Mouser

Dunbar

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 1-1/2in Red 4ft SAE AS23053/4-305-2, QPL listed

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Datasheet

25In Stock

€26.21

€21.59

€18.26

€18.05

€18.04

Min.: 1
Mult.: 1

3635W

Bulk

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 4:1 Polyolefin Dual Wall (adhesive lined), 1-1/4in (32mm) Black 4ft

4635WT-1-1/4(32MM)-BLACK-4FT
Dunbar
1: €22.49
1In Stock
39Expected 04/09/2026
New At Mouser

Mfr. Part No.
4635WT-1-1/4(32MM)-BLACK-4FT

Mouser Part No
15-4635WT11432MMBLK4

New At Mouser

Dunbar

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 4:1 Polyolefin Dual Wall (adhesive lined), 1-1/4in (32mm) Black 4ft

Learn More

Datasheet

1In Stock

39Expected 04/09/2026

€22.49

€18.52

€15.66

€15.49

€15.48

Min.: 1
Mult.: 1

4635WT

Bulk

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 1in Red 4ft

DC-321A-1-RED-4FT
Dunbar
1: €8.04
100In Stock
New At Mouser

Mfr. Part No.
DC-321A-1-RED-4FT

Mouser Part No
15-DC-321A-1-RED-4FT

New At Mouser

Dunbar

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 1in Red 4ft

Learn More

Datasheet

100In Stock

€8.04

€6.62

€6.09

€5.09

Min.: 1
Mult.: 1

DC-321A

Bulk

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 1/2in Black 4ft

DC-321A-1/2-BLACK-4FT
Dunbar
1: €2.54
123In Stock
77Expected 04/09/2026
New At Mouser

Mfr. Part No.
DC-321A-1/2-BLACK-4FT

Mouser Part No
15-DC321A12BLACK-4FT

New At Mouser

Dunbar

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 1/2in Black 4ft

Learn More

Datasheet

123In Stock

77Expected 04/09/2026

€2.54

€2.09

€1.76

€1.58

€1.45

Min.: 1
Mult.: 1

DC-321A

Bulk

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 1/2in Yellow 4ft

DC-321A-1/2-YELLOW-4FT
Dunbar
1: €4.29
100In Stock
New At Mouser

Mfr. Part No.
DC-321A-1/2-YELLOW-4FT

Mouser Part No
15-DC321A12YELLOW4FT

New At Mouser

Dunbar

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 1/2in Yellow 4ft

Learn More

Datasheet

100In Stock

€4.29

€3.53

€3.25

€2.61

€2.49

Min.: 1
Mult.: 1

DC-321A

Bulk

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 1/4in Black 250ft spool

DC-321A-1/4-BLACK-250FT
Dunbar
250: €0.282
1,250In Stock
New At Mouser

Mfr. Part No.
DC-321A-1/4-BLACK-250FT

Mouser Part No
15-DC321A14BLACK250F

New At Mouser

Dunbar

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 1/4in Black 250ft spool

Learn More

Datasheet

1,250In Stock

€0.282

€0.267

Min.: 250
Mult.: 250

DC-321A

Spool

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 1/8in Yellow 4ft

DC-321A-1/8-YELLOW-4FT
Dunbar
1: €1.54
500In Stock
New At Mouser

Mfr. Part No.
DC-321A-1/8-YELLOW-4FT

Mouser Part No
15-DC321A18YELLOW4FT

New At Mouser

Dunbar

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 1/8in Yellow 4ft

Learn More

Datasheet

500In Stock

€1.54

€1.27

€1.08

€0.937

View

Min.: 1
Mult.: 1

DC-321A

Bulk

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 3/8in Black 4ft

DC-321A-3/8-BLACK-4FT
Dunbar
1: €2.24
250In Stock
New At Mouser

Mfr. Part No.
DC-321A-3/8-BLACK-4FT

Mouser Part No
15-DC321A38BLACK-4FT

New At Mouser

Dunbar

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 3/8in Black 4ft

Learn More

Datasheet

250In Stock

€2.24

€1.85

€1.57

€1.40

View

Min.: 1
Mult.: 1

DC-321A

Bulk

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 1/4in Black 4ft SAE AS23053/4-302-0, QPL listed

3635W-1/4-BLACK-4FT
Dunbar
1: €5.55
245In Stock
New At Mouser

Mfr. Part No.
3635W-1/4-BLACK-4FT

Mouser Part No
15-3635W-14-BLACK4FT

New At Mouser

Dunbar

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 1/4in Black 4ft SAE AS23053/4-302-0, QPL listed

Learn More

Datasheet

245In Stock

€5.55

€4.56

€4.20

€3.46

€3.38

Min.: 1
Mult.: 1

3635W

Bulk

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 3/8in Black 4ft SAE AS23053/4 Non Mil-Spec Diameter

3635W-3/8-BLACK-4FT
Dunbar
1: €7.84
250In Stock
New At Mouser

Mfr. Part No.
3635W-3/8-BLACK-4FT

Mouser Part No
15-3635W-38-BLACK4FT

New At Mouser

Dunbar

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 3/8in Black 4ft SAE AS23053/4 Non Mil-Spec Diameter

Learn More

Datasheet

250In Stock

€7.84

€6.45

€5.93

€4.88

€4.78

Min.: 1
Mult.: 1

3635W

Bulk

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 1/2in Red 4ft

DC-321A-1/2-RED-4FT
Dunbar
1: €4.29
100In Stock
New At Mouser

Mfr. Part No.
DC-321A-1/2-RED-4FT

Mouser Part No
15-DC-321A-12-RED4FT

New At Mouser

Dunbar

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 1/2in Red 4ft

Learn More

Datasheet

100In Stock

€4.29

€3.53

€3.25

€2.61

€2.49

Min.: 1
Mult.: 1

DC-321A

Bulk

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 4:1 Polyolefin Dual Wall (adhesive lined), 1/2in (12mm) Black 4ft

4635WT-1/2(12MM)-BLACK-4FT
Dunbar
1: €10.26
100In Stock
New At Mouser

Mfr. Part No.
4635WT-1/2(12MM)-BLACK-4FT

Mouser Part No
15-4635WT1212MMBLK4F

New At Mouser

Dunbar

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 4:1 Polyolefin Dual Wall (adhesive lined), 1/2in (12mm) Black 4ft

Learn More

Datasheet

100In Stock

€10.26

€8.45

€7.77

€6.73

Min.: 1
Mult.: 1

4635WT

Bulk

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 1in White 4ft

DC-321A-1-WHITE-4FT
Dunbar
1: €8.04
100In Stock
New At Mouser

Mfr. Part No.
DC-321A-1-WHITE-4FT

Mouser Part No
15-DC-321A-1WHITE4FT

New At Mouser

Dunbar

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 1in White 4ft

Learn More

Datasheet

100In Stock

€8.04

€6.62

€6.09

€5.09

Min.: 1
Mult.: 1

DC-321A

Bulk

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 3/16in Clear 4ft

DC-321A-3/16-CLEAR-4FT
Dunbar
1: €1.70
750In Stock
New At Mouser

Mfr. Part No.
DC-321A-3/16-CLEAR-4FT

Mouser Part No
15-DC321A316CLEAR4FT

New At Mouser

Dunbar

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 3/16in Clear 4ft

Learn More

Datasheet

750In Stock

€1.70

€1.40

€1.18

€1.03

View

Min.: 1
Mult.: 1

DC-321A

Bulk

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 1/2in Black 4ft M25053/4-303-0, QPL listed

3635W-1/2-BLACK-4FT
Dunbar
1: €9.33
1In Stock
99Expected 04/09/2026
New At Mouser

Mfr. Part No.
3635W-1/2-BLACK-4FT

Mouser Part No
15-3635W-12-BLACK4FT

New At Mouser

Dunbar

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 1/2in Black 4ft M25053/4-303-0, QPL listed

Learn More

Datasheet

1In Stock

99Expected 04/09/2026

€9.33

€7.69

€7.07

€5.91

Min.: 1
Mult.: 1

3635W

Bulk

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 1/2in Clear 4ft

3635W-1/2-CLEAR-4FT
Dunbar
1: €9.95
50In Stock
New At Mouser

Mfr. Part No.
3635W-1/2-CLEAR-4FT

Mouser Part No
15-3635W-12-CLEAR4FT

New At Mouser

Dunbar

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 1/2in Clear 4ft

Learn More

Datasheet

50In Stock

€9.95

€8.20

€7.53

€6.52

Min.: 1
Mult.: 1

3635W

Bulk

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Semi-Rigid 4:1 Polyolefin Dual Wall (adhesive lined), No.2-8mm Black 250ft spool

4635WS-NO.2-8MM-BLACK-250FT
Dunbar
250: €0.955
500In Stock
New At Mouser

Mfr. Part No.
4635WS-NO.2-8MM-BLACK-250FT

Mouser Part No
15-4635WSNO28MMBL250

New At Mouser

Dunbar

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Semi-Rigid 4:1 Polyolefin Dual Wall (adhesive lined), No.2-8mm Black 250ft spool

Learn More

Datasheet

500In Stock

€0.955

Min.: 250
Mult.: 250

4635WS

Spool

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 1/8in Red 4ft

DC-321A-1/8-RED-4FT
Dunbar
1: €1.54
500In Stock
New At Mouser

Mfr. Part No.
DC-321A-1/8-RED-4FT

Mouser Part No
15-DC-321A-18-RED4FT

New At Mouser

Dunbar

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 1/8in Red 4ft

Learn More

Datasheet

500In Stock

€1.54

€1.27

€1.08

€0.937

View

Min.: 1
Mult.: 1

DC-321A

Bulk

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 1/2in Clear 100ft spool

DC-321A-1/2-CLEAR-100FT
Dunbar
100: €0.98
400In Stock
New At Mouser

Mfr. Part No.
DC-321A-1/2-CLEAR-100FT

Mouser Part No
15-DC321A12CLEAR100F

New At Mouser

Dunbar

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 1/2in Clear 100ft spool

Learn More

Datasheet

400In Stock

€0.98

€0.963

Min.: 100
Mult.: 100

DC-321A

Spool

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 1/4in Clear 4ft

DC-321A-1/4-CLEAR-4FT
Dunbar
1: €1.81
500In Stock
New At Mouser

Mfr. Part No.
DC-321A-1/4-CLEAR-4FT

Mouser Part No
15-DC321A14CLEAR-4FT

New At Mouser

Dunbar

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 1/4in Clear 4ft

Learn More

Datasheet

500In Stock

€1.81

€1.49

€1.26

€1.13

View

Min.: 1
Mult.: 1

DC-321A

Bulk

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 1/4in Clear 250ft spool

DC-321A-1/4-CLEAR-250FT
Dunbar
250: €0.454
1,250In Stock
New At Mouser

Mfr. Part No.
DC-321A-1/4-CLEAR-250FT

Mouser Part No
15-DC321A14CLEAR250F

New At Mouser

Dunbar

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 1/4in Clear 250ft spool

Learn More

Datasheet

1,250In Stock

€0.454

Min.: 250
Mult.: 250

DC-321A

Spool

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 1/4in White 250ft spool

DC-321A-1/4-WHITE-250FT
Dunbar
250: €0.454
1,250In Stock
New At Mouser

Mfr. Part No.
DC-321A-1/4-WHITE-250FT

Mouser Part No
15-DC321A14WHITE250F

New At Mouser

Dunbar

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 1/4in White 250ft spool

Learn More

Datasheet

1,250In Stock

€0.454

Min.: 250
Mult.: 250

DC-321A

Spool

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Semi-Rigid 4:1 Polyolefin Dual Wall (adhesive lined), No.1-6mm Black 500ft spool

4635WS-NO.1-6MM-BLACK-500FT
Dunbar
500: €0.794
1,000In Stock
New At Mouser

Mfr. Part No.
4635WS-NO.1-6MM-BLACK-500FT

Mouser Part No
15-4635WSNO16MMBL500

New At Mouser

Dunbar

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Semi-Rigid 4:1 Polyolefin Dual Wall (adhesive lined), No.1-6mm Black 500ft spool

Learn More

Datasheet

1,000In Stock

€0.794

Min.: 500
Mult.: 500

4635WS

Spool

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 3/16in White 4ft

DC-321A-3/16-WHITE-4FT
Dunbar
1: €1.70
750In Stock
New At Mouser

Mfr. Part No.
DC-321A-3/16-WHITE-4FT

Mouser Part No
15-DC321A316WHITE4FT

New At Mouser

Dunbar

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 3/16in White 4ft

Learn More

Datasheet

750In Stock

€1.70

€1.40

€1.18

€1.03

View

Min.: 1
Mult.: 1

DC-321A

Bulk

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 3/4in Black 4ft

DC-321A-3/4-BLACK-4FT
Dunbar
1: €4.49
2In Stock
98Expected 04/09/2026
New At Mouser

Mfr. Part No.
DC-321A-3/4-BLACK-4FT

Mouser Part No
15-DC321A34BLACK-4FT

New At Mouser

Dunbar

Heat Shrink Tubing & Sleeves Heat Shrink Tubing, Flexible 3:1 Polyolefin Dual Wall (adhesive lined), 3/4in Black 4ft

Learn More

Datasheet

2In Stock

98Expected 04/09/2026

€4.49

€3.70

€3.40

€2.73

€2.61

Min.: 1
Mult.: 1

DC-321A

Bulk

Dual-Wall Tubings

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