The most flexible, strongest polymer tubing out there.


Medical Grade

Heat Shrink Tubing

ISO 13485 Certified


Looking for pre-packaged sample kits?

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We have partnered with Chamfr, the online medical marketplace, for pre-packaged and pre-configured sample kits. They are ready to drop ship within 24 hours of your order, and can be found here.

If you are instead looking for custom configuration of your heat shrink tubing sample kits, please stay on our website. You can find $100 R&D kits here, or a full list of product types for free sample orders here.


Innovative Heat Shrink Tubing

Our customer service, quality systems and  production processes reflect a company-wide commitment to making products that enable incredible therapies. We make amazing tubing, but our customers perform miracles.

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ISO 13485-2016 certified

Cobalt Polymers has been producing and supplying tubing to many of the world's most innovative Medical Device manufacturers since 2001.  Leveraging our founders' history in highly regulated manufacturing, we have been ISO and GMP compliant throughout our history, passing major device quality audits. Our products have been incorporated into many production medical devices and we are ISO 13485 registered.


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Highly flexible tubing made from a Class VI polyolefin: thin, pliable and tough to address the dynamic requirements of device design and manufacturing.


Polyolefin Iridium™ 2:1
Product ID Expanded ID, min Recovered ID, max Wall Thickness, recovered Color
U2-016-CLR 0.016" (0.4mm) 0.010" (0.25mm) 0.002" (.05mm) Clear
X2-025-CLR 0.020" (0.5mm) 0.010" (0.25mm) 0.005" (0.1mm) Clear
X2-034-BLK 0.034" (0.9mm) 0.020" (0.5mm) 0.005" (0.1mm) Black
X2-034-CLR 0.034" (0.9mm) 0.020" (0.5mm) 0.005" (0.1mm) Clear
U2-055-CLR 0.050" (1.3mm) 0.035" (0.9mm) 0.002" (.05mm) Clear
U2-070-CLR 0.066" (1.7mm) 0.040" (1.0mm) 0.003" (.07mm) Clear
X2-070-CLR 0.066" (1.7mm) 0.040" (1.0mm) 0.009" (0.2mm) Clear
U2-110-CLR 0.100" (2.5mm) 0.060" (1.5mm) 0.004" (0.1mm) Clear
U2-170-BLK 0.140" (3.5mm) 0.090" (2.3mm) 0.005" (0.1mm) Black
Polyolefin Iridium™ 4:1
Product ID Expanded ID, nominal Recovered ID, max Wall Thickness, supplied /recovered Color
U4-040-CLR 0.040" (1mm) 0.010" (0.25mm) 0.0005"/0.002" (.05mm) Clear
X4-040-CLR 0.040" (1mm) 0.010" (0.25mm) 0.001"/0.005" (0.1mm) Clear
X4-080-CLR 0.080" (2mm) 0.020" (0.5mm) 0.001"/0.005" (0.1mm) Clear
X4-080-BLK 0.080" (2mm) 0.020" (0.5mm) 0.001"/0.005/ (0.1mm) Black
U4-140-CLR 0.140" (3.6mm) 0.035" (0.9mm) 0.001"/0.003" (.07mm) Clear
X4-140-CLR 0.140" (3.6mm) 0.050" (1.3mm) 0.002" /0.009"(0.2mm) Clear
U4-240-CLR 0.240" (6.1mm) 0.060" (1.5mm) 0.001"/0.003" (.07mm) Clear
U4-360-BLK 0.360" (9.2mm) 0.090" (2.3mm) 0.001"/0.005" (0.1mm) Black
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Pebax Palladium™ Heat Shrink Tubing

Comprehensive strength, toughness, wall thickness, flexibility. Surface flow with excellent grip onto polymer or metal substrates.


Pebax Palladium™ 72D '2:1' Shrink Tubing
Product ID Expanded ID, min Recovered ID, max Wall Thickness, recovered Color
P2-023-0035-BLK 0.023” (.58mm) 0.015” (.38mm) 0.0035” (.08mm) Black
P2-038-002-CLR 0.038” (.96mm) 0.023” (.55mm) 0.002” (0.03mm) Clear
P2-065-0025-CLR 0.065” (1.6mm) 0.048” (1.2mm) 0.0025” (.05mm) Clear
P2-089-0025-CLR 0.089” (2.26mm) 0.059” (1.49mm) 0.0025” (.06mm) Clear
P2-100-0025-CLR 0.100” (2.54mm) 0.082” (2.08mm) 0.0025” (.06mm) Clear
P2-014-002-CLR 0.014” (0.3mm) 0.007” (0.1mm) 0.002” (.05mm) Clear
P2-040-004-CLR 0.036” (0.9mm) 0.020” (0.5mm) 0.004” (0.1mm) Clear
P2-040-004-BLK 0.036” (0.9mm) 0.020” (0.5mm) 0.004” (0.1mm) Black
P2-060-010-CLR 0.060” (1.5mm) 0.035” (0.9mm) 0.010” (0.25mm) Clear
P2-060-003-CLR 0.060” (1.5mm) 0.035” (0.9mm) 0.003” (.07mm) Clear
P2-140-006-CLR 0.130” (3.3mm) 0.075” (1.9mm) 0.006” (0.15mm) Clear
Pebax Palladium™ 40D '2:1' Shrink Tubing
Product ID Expanded ID, min Recovered ID, max Wall Thickness, recovered Color
P2-040-004-40-CLR 0.036” (0.9mm) 0.020” (0.5mm) 0.004” (0.1mm) Clear
P2-060-003-40-CLR 0.060” (1.5mm) 0.035” (0.9mm) 0.003” (.07mm) Clear
P2-060-010-40-CLR 0.060” (1.5mm) 0.035” (0.9mm) 0.010” (0.25mm) Clear
P2-140-006-40-CLR 0.130” (3.3mm) 0.075” (1.9mm) 0.006” (0.15mm) Clear
Pebax Palladium™ 72D 4:1
Product ID Expanded ID, nominal Recovered ID, max Wall Thickness, supplied /recovered Color
P4-080-004-CLR 0.070” (1.7mm) 0.021” (0.5mm) 0.0006” /0.004” (0.1mm) Clear
P4-080-004-BLK 0.070” (1.7mm) 0.021” (0.5mm) 0.0006” /0.004” (0.1mm) Black
P4-120-010-CLR 0.098” (2.5mm) 0.035” (0.9mm) 0.0015” /0.010” (0.25mm) Clear
P4-120-003-CLR 0.120” (3.0mm) 0.035” (0.9mm) 0.0005” /0.003” (.07mm) Clear
P4-280-006-CLR 0.250” (6.3mm) 0.070” (1.7mm) 0.0008” /0.006” (0.15mm) Clear
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