Dual-Shrink™ is our unique bilayer heat shrink that takes advantage of the differing properties of two polymers combined into a single heat shrink tubing. Dual-Shrink™ delivers superior encapsulation and protection for critical components.
Particularly valuable in automotive and aerospace applications, our Dual-Shrink™ heat shrinks are specialized bilayer products developed to fully encapsulate components to lock out moisture and other chemicals. These products are available in two versions: a PTFE outer / FEP inner layer, and a low-temperature version with an FEP outer / EFEP inner layer. These dual-layer heat shrinks provide tight and moisture-proof bonds over wires, cables, connectors, splices, terminals, and other essential parts.
Dual-Shrink™ works like this: When heated, the outer layer shrinks tightly over inserted parts while the inner layer melts and flows into a solid or near-solid encapsulation. The result is a fit so tight that it can withstand severe stresses involving pull or vibration.
Zeus Dual-Shrink™ tubing provides all the outstanding electrical, chemical, and mechanical properties of fluoropolymers, but in a bilayer form. Our PTFE / FEP Dual-Shrink™ has a continuous service temperature up to 450 °F (232 °C). The PTFE outer layer has a recovery (shrinkage) temperature between 654 °F (346 °C) and 670 °F (354 °C) and offers superior corrosion resistance.
Our Low Temperature Dual-Shrink™ has a continuous upper working temperature of up to 302 °F (150 °C), and the FEP outer layer recovers at 419 °F (215 °C). Low Temperature Dual-Shrink™ was created to provide dual-layer encapsulation to heat-sensitive components that cannot tolerate the higher recovery temperatures of other heat shrinks.
Custom combinations of polymers, sizes, and tolerances can be quoted upon request. Contact our team today or call toll-free in the US 1-800-526-3842 or +1-803-268-9500 internationally to find out what our Dual-Shrink™ or other products can do for you.
Component Encapsulation – Zeus Dual-Shrink™ is a specialized double-layer tubing that allows the internal layer to be melted over components and then covered by a shrinkable outer polymer layer. Through this process, the covered components are double-sealed, protecting them from moisture and other potentially harmful chemicals in their working environment.
Electrical Connections – For connecting electrical components to each other or to a terminal, Zeus Dual-Shrink™ helps maintain the connection to ensure a secure and dependable power flow while providing the necessary protection in wide-ranging operating environments.
Wire Splicing – For those times when conventional connectors or terminals are not available, such as out in the field, our Dual-Shrink™ tubing can provide the necessary fix when needing to splice or join wires together. The near-solid inner melt layer of the Dual-Shrink™ tubing is strong enough to tolerate rigorous pulling, bending, and vibrational stresses.
Chemical Resistance – Dual-Shrink™ provides resistance to an extremely broad spectrum of commonly encountered workplace chemicals to extend the life of your components.
Wide Working Temperature Range – PTFE / FEP Dual-Shrink™ can safely operate in temperatures up to 450 °F (232 °C). FEP / EFEP Low Temperature Dual-Shrink™ has an upper working temperature up to 302 °F (150 °C) and a lower service temperature extending to sub-zero temperatures.
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