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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: ₩47,548.8
25In Stock
New At Mouser

Mfr. Part #
3635W-1-1/2-RED-4FT

Mouser Part #
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

₩47,548.8

₩39,156

₩33,118.8

₩32,744.4

₩32,728.8

Min.: 1
Mult.: 1

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: ₩40,794
1In Stock
39Expected 9/4/2026
New At Mouser

Mfr. Part #
4635WT-1-1/4(32MM)-BLACK-4FT

Mouser Part #
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

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Datasheet

1In Stock

39Expected 9/4/2026

₩40,794

₩33,586.8

₩28,407.6

₩28,095.6

₩28,080

Min.: 1
Mult.: 1

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: ₩14,586
100In Stock
New At Mouser

Mfr. Part #
DC-321A-1-RED-4FT

Mouser Part #
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

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Datasheet

100In Stock

₩14,586

₩12,012

₩11,044.8

₩9,235.2

Min.: 1
Mult.: 1

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: ₩4,602
123In Stock
77Expected 9/4/2026
New At Mouser

Mfr. Part #
DC-321A-1/2-BLACK-4FT

Mouser Part #
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 9/4/2026

₩4,602

₩3,790.8

₩3,198

₩2,870.4

₩2,636.4

Min.: 1
Mult.: 1

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: ₩7,784.4
100In Stock
New At Mouser

Mfr. Part #
DC-321A-1/2-YELLOW-4FT

Mouser Part #
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

₩7,784.4

₩6,411.6

₩5,896.8

₩4,742.4

₩4,524

Min.: 1
Mult.: 1

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: ₩511.7
1,250In Stock
New At Mouser

Mfr. Part #
DC-321A-1/4-BLACK-250FT

Mouser Part #
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

₩511.7

₩483.6

Min.: 250
Mult.: 250

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: ₩2,792.4
500In Stock
New At Mouser

Mfr. Part #
DC-321A-1/8-YELLOW-4FT

Mouser Part #
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

₩2,792.4

₩2,308.8

₩1,950

₩1,700.4

View

Min.: 1
Mult.: 1

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: ₩4,071.6
250In Stock
New At Mouser

Mfr. Part #
DC-321A-3/8-BLACK-4FT

Mouser Part #
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

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Datasheet

250In Stock

₩4,071.6

₩3,354

₩2,839.2

₩2,542.8

View

Min.: 1
Mult.: 1

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: ₩10,062
245In Stock
New At Mouser

Mfr. Part #
3635W-1/4-BLACK-4FT

Mouser Part #
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

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Datasheet

245In Stock

₩10,062

₩8,268

₩7,612.8

₩6,271.2

₩6,130.8

Min.: 1
Mult.: 1

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: ₩14,227.2
250In Stock
New At Mouser

Mfr. Part #
3635W-3/8-BLACK-4FT

Mouser Part #
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

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Datasheet

250In Stock

₩14,227.2

₩11,700

₩10,764

₩8,860.8

₩8,673.6

Min.: 1
Mult.: 1

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: ₩7,784.4
100In Stock
New At Mouser

Mfr. Part #
DC-321A-1/2-RED-4FT

Mouser Part #
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

₩7,784.4

₩6,411.6

₩5,896.8

₩4,742.4

₩4,524

Min.: 1
Mult.: 1

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: ₩18,610.8
100In Stock
New At Mouser

Mfr. Part #
4635WT-1/2(12MM)-BLACK-4FT

Mouser Part #
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

₩18,610.8

₩15,334.8

₩14,102.4

₩12,199.2

Min.: 1
Mult.: 1

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: ₩14,586
100In Stock
New At Mouser

Mfr. Part #
DC-321A-1-WHITE-4FT

Mouser Part #
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

₩14,586

₩12,012

₩11,044.8

₩9,235.2

Min.: 1
Mult.: 1

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: ₩3,088.8
750In Stock
New At Mouser

Mfr. Part #
DC-321A-3/16-CLEAR-4FT

Mouser Part #
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

₩3,088.8

₩2,542.8

₩2,137.2

₩1,872

View

Min.: 1
Mult.: 1

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: ₩16,926
1In Stock
99Expected 9/4/2026
New At Mouser

Mfr. Part #
3635W-1/2-BLACK-4FT

Mouser Part #
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 9/4/2026

₩16,926

₩13,946.4

₩12,823.2

₩10,717.2

Min.: 1
Mult.: 1

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: ₩18,049.2
50In Stock
New At Mouser

Mfr. Part #
3635W-1/2-CLEAR-4FT

Mouser Part #
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

₩18,049.2

₩14,866.8

₩13,665.6

₩11,824.8

Min.: 1
Mult.: 1

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: ₩1,731.6
500In Stock
New At Mouser

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

Mouser Part #
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

₩1,731.6

Min.: 250
Mult.: 250

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: ₩2,792.4
500In Stock
New At Mouser

Mfr. Part #
DC-321A-1/8-RED-4FT

Mouser Part #
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

₩2,792.4

₩2,308.8

₩1,950

₩1,700.4

View

Min.: 1
Mult.: 1

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: ₩1,778.4
400In Stock
New At Mouser

Mfr. Part #
DC-321A-1/2-CLEAR-100FT

Mouser Part #
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

₩1,778.4

₩1,747.2

Min.: 100
Mult.: 100

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: ₩3,276
500In Stock
New At Mouser

Mfr. Part #
DC-321A-1/4-CLEAR-4FT

Mouser Part #
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

₩3,276

₩2,698.8

₩2,277.6

₩2,043.6

View

Min.: 1
Mult.: 1

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: ₩823.7
1,250In Stock
New At Mouser

Mfr. Part #
DC-321A-1/4-CLEAR-250FT

Mouser Part #
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

₩823.7

Min.: 250
Mult.: 250

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: ₩823.7
1,250In Stock
New At Mouser

Mfr. Part #
DC-321A-1/4-WHITE-250FT

Mouser Part #
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

₩823.7

Min.: 250
Mult.: 250

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: ₩1,439.9
1,000In Stock
New At Mouser

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

Mouser Part #
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

₩1,439.9

Min.: 500
Mult.: 500

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: ₩3,088.8
750In Stock
New At Mouser

Mfr. Part #
DC-321A-3/16-WHITE-4FT

Mouser Part #
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

₩3,088.8

₩2,542.8

₩2,137.2

₩1,872

View

Min.: 1
Mult.: 1

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: ₩8,143.2
2In Stock
98Expected 9/4/2026
New At Mouser

Mfr. Part #
DC-321A-3/4-BLACK-4FT

Mouser Part #
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 9/4/2026

₩8,143.2

₩6,708

₩6,162

₩4,960.8

₩4,726.8

Min.: 1
Mult.: 1

Dual-Wall Tubings

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