
Protect Against Moisture with Dual Wall Adhesive Heat Shrink Tubing
Dual wall heat shrink tubing protects against moisture and corrosive environments, while providing electrical insulation and mechanical protection using engineered adhesives. Dual wall tubing products consist of a crosslinked outer jacket and an inner layer of adhesive or encapsulant. During installation, the adhesive or encapsulant lining melts and flows, creating a moisture-resistant protective barrier. Benefits of this type of tubing include controlled amounts of adhesive and consistent results; compliance with AMS-DTL-23053 standards; UL recognition/CSA certification; and RoHS Compliant.
Product features
Dual-wall heat shrink tubing
- Shrink ratios ranging from 2:1 to 6:1
- Highly engineered adhesives to bond with various materials
- Numerous color options
- Resistance to flame, heat, chemicals and mechanical damage.
- Recognition/approvals by various testing agencies


Product variations
Dual-wall heat shrink tubing
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DWFR Tubing
DWFR (dual wall flame retardant) tubing can be easily installed using many different types of heating tools, ranging from basic heat guns to conveyor-equipped ovens, for high-volume production environments.
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ATUM Tubing
Environmentally seals and protects a wide variety of applications, including back end connector sealing, breakouts, and connector-to-cable transitions.
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DWP-125 Tubing
Flexible, high-shrink-ratio, adhesive-lined polyolefin tubing that environmentally seals and protects a wide variety of electrical applications.
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TAT-125 Tubing
Adhesive-lined, flexible, polyolefin tubing that seals and protects simple in-line splices, bi-metallic joints, and components from fluids, moisture, and corrosion.
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SCL Tubing
Semirigid, encapsulant-lined polyolefin tubing which encapsulates components, splices, and terminations where moisture resistance and mechanical protection are required.
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SCT Tubing
Flame-retardant, adhesive-lined, semirigid, polyolefin tubing specifically designed to insulate and seal automotive wire splices and components in an under-the-hood automotive environment.
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ES1000 Tubing
Clear, adhesive-lined, semirigid polyolefin tubing specifically designed for environmental sealing and electrical insulation of wire splices, termination, and components where see-through inspection is required.
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ES2000 Tubing
Adhesive-lined semirigid polyolefin tubing specially designed for environmental sealing electrical insulation of wire splices, termination, and components.
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DWHF Tubing
DWHF (dual wall halogen free) tubing complies with the high requirements of the rail industry EN45545 standard (high level of flame retardancy, low level of toxicity, smoke, in a fire situation).
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QSZH Tubing
Zero halogen, dual wall heat shrinkable tubing designed to provide environmental sealing, mechanical and electrical protection of in-line splices in an automotive environment.
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QS1500 Tubing
QS1500 dual wall tubing comprises a flexible crosslinked, flame-retardant, polyolefin tubing lined with a hot-melt adhesive to provide faster installation times compared to other dual wall tubing, it is suitable for use in the automotive harness market and other harsh environments.
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RBK-ILS/RBK-105/RBK-VWS/RBK-ESS/RBK-RTP
RBK is a dual-wall, heat-shrinkable, flame-retarded tubing designed to provide environmental sealing of electrical splices in an automotive environment.
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DSPL Tubing
Specially designed for environmental sealing, electrical insulation and protection of electrical splices, terminals and other components in areas where they will be exposed to moisture.
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RPPM Tubing
RPPM is a flexible, heat shrinkable, dual wall tubing with an integrally bonded meltable adhesive liner. Available in clear and black, the tough outer jacket offers excellent mechanical strength.
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AP-2000 Tubing
AP-2000 is designed for use on industry standard metal pipes to provide protection on automotive and fuel lines in areas exposed to mechanical abuse and moisture. The product is positioned on straight pipe lengths prior to the second end-nut fitting.
Application tooling for heat shrink tubing
Heaters, ovens, and seal tests
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Advanced Tooling for Efficient Heat Shrink Protection
Our equipment for heat shrink tubing seals and protects electrical splices, and provides mechanical protection for fluid management systems in harsh environments. Across a wide range of applications, we deliver optimal heating temperatures, performance and control features for greater efficiency and quality. Click to view our entire portfolio.