Catheter construction requires the outer jacket to be bonded to the underlying liner. To facilitate this step, a heat-shrinkable fusing sleeve is typically used as an assembly aid.  With the application of heat, the fusing sleeve shrinks, applying radial compression while the outer jacket melts (reflows) through the braiding and bonds to the outer etched PTFE liner, ultimately forming the catheter shaft. After the reflow process is complete, the fusing sleeve is removed from the catheter leaving a finished device.

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FluoroPEELZ™ Peelable Heat Shrink

The premier fusing sleeve from Zeus is FluoroPEELZ™ – our peelable heat shrink. This super-easy-to-use heat shrink quickly and easily peels away from the catheter shaft after reflow minimizing scrap and improving manufacturing efficiencies. To start the peel, our size-specific FluoroPEELZ™ slit fixture safely encapsulates the razor blade assuring that you get a precisely centered cut which enhances the linear tear. Just slit the end of the FluoroPEELZ™, peel it back, and move on!

Key Benefits:

• Enhanced Safety
• Accelerated Production
• Improved Yields

FluoroPEELZ™ has high optical clarity for easy visual monitoring during reflow and provides a smooth and void-free exterior finish. FluoroPEELZ™ peelable heat shrink is also available in black translucent for use with laser based recovery methods.

FluoroPEELZ™ Typical Size Ranges
Shrink Ratio	Expanded ID	Recovered ID	Wall Thickness	Wall Thickness Tolerances
1.3:1	0.015″ – 0.500″ (0.381 mm – 12.7 mm)	0.012″ – 0.385″ (0.305 mm – 9.779 mm)	0.008″ – 0.013″ (0.203 mm – 0.330 mm)	± 0.002″ (± 0.051 mm)
1.4:1	0.015″ – 0.500″ (0.381 mm – 12.7 mm)	0.011″ – 0.358″ (0.279 mm – 9.093 mm)	0.009″ – 0.013″ (0.229 mm – 0.330 mm)	± 0.002″ (± 0.051 mm)
1.5:1	0.015″ – 0.500″ (0.381 mm – 12.7 mm)	0.010″ – 0.334″ (0.254 mm – 8.484 mm)	0.010″ – 0.014″ (0.254 mm – 0.356 mm)	± 0.002″ (± 0.051 mm)
1.6:1	0.016″ – 0.500″ (0.406 mm – 12.7 mm)	0.010″ – 0.313″ (0.254 mm – 7.950 mm)	0.010″ – 0.018″ (0.254 mm – 0.457 mm)	± 0.002″ (± 0.051 mm)
1.7:1	0.017″ – 0.500″ (0.432 mm – 12.7 mm)	0.010″ – 0.295″ (0.254 mm – 7.493 mm)	0.010″ – 0.018″ (0.254 mm – 0.457 mm)	± 0.002″ (± 0.051 mm)
1.8:1	0.030″ – 0.500″ (0.762 mm – 12.7 mm)	0.017″ – 0.278″ (0.432 mm – 7.061 mm)	0.013″ – 0.018″ (0.254 mm – 0.457 mm)	± 0.002″ (± 0.051 mm)
1.9:1	0.032″ – 0.500″ (0.813 mm – 12.7 mm)	0.017″ – 0.264″ (0.432 mm – 6.706 mm)	0.013″ – 0.018″ (0.330 mm – 0.457 mm)	± 0.002″ (± 0.051 mm)
2.0:1	0.034″ – 0.500″ (0.864 mm – 12.7 mm)	0.017″ – 0.250″ (0.432 mm – 6.35 mm)	0.013″ – 0.018″ (0.330 mm – 0.457 mm)	± 0.002″ (± 0.051 mm)

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FEP Heat Shrink

For other recovery options, FEP heat shrink may be your preferred method. Just like FluoroPEELZ™, FEP heat shrink offers exceptional chemical resistance and high optical clarity.

Key Benefits:

• Chemical Resistance
• Similar Recovery Temperature To FluoroPEELZ™
• Optical Clarity

FEP Heat Shrink Available Size Ranges (Typical)
Expanded ID		Recovered ID		Wall Thickness		Ratio
in.	mm.	in.	mm.	in.	mm.
0.031 to 0.400	0.79 to 11.18	0.027 to 0.349	0.69 to 8.86	0.008 to 0.012	0.20 to 0.30	1.3:1
0.093 to 2.000	2.36 to 50.80	0.056 to 1.200	1.42 to 30.48	0.008 to 0.030	0.20 to 0.76	1.6:1
0.034 to 0.385	0.86 to 9.78	0.017 to 0.193	0.43 to 4.89	0.010 to 0.013	0.25 to 0.33	2.0:1

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