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Polyvinylidene Fluoride (PVDF, Kynar®) Heat Shrink Sleeve
Superior Chemical and Abrasion Resistance with High Operating Temperature in One Tube
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Polyvinylidene Fluoride (PVDF, Kynar®) Heat Shrink Sleeve
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What's special about PVDF Heat Shrink Tubing?
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PVDF heat shrink tubing is used in applications where continuous operating temperatures are 150-175°C. It is used where outstanding abrasion and cut-through resistance are required. We carry two types of PVDF tubing, which conform to either MIL-DTL-23053/18 Class 2 or MIL-DTL-23053/8.
PVDF is available in flexible (150°C) and semi-rigid (175°C) forms, in a 2:1 shrink ratio.
PVDF Heat Shrink is RoHS (Restriction of Hazardous Substances) Compliant (PDF) 
- Maximum continuous operating temperature 302°F (150°C or 175°C)
- Superior chemical and aging resistance
- UV and gamma ray stable
- Flame rating: UL94-V0 and VW-1
- Lowest coefficient of friction available besides PTFE
- Flexible PVDF has MIL-DTL-23053/18 Class 2 approval
- Semi-Rigid PVDF has MIL-DTL-23053/8 approval
- Available color is Clear. For Black, please call
2:1 Semi-Rigid PVDF Dimensions
Minimum Shrink Temperature: 150 °C
| SIZE (In.) |
EXPANDED | RECOVERED | ||||
| MINIMUM INTERNAL DIAMETER | MAXIMUM INTERNAL DIAMETER | MINIMUM TOTAL WALL THICKNESS | ||||
| in. | mm | in. | mm | in. | mm | |
| 3/64" | 0.047 | 1.2 | 0.023 | 0.58 | 0.007 | 0.180 |
| 1/16" | 0.063 | 1.6 | 0.031 | 0.79 | 0.007 | 0.180 |
| 3/32" | 0.094 | 2.4 | 0.046 | 1.17 | 0.010 | 0.250 |
| 1/8" | 0.125 | 3.2 | 0.062 | 1.57 | 0.010 | 0.250 |
| 3/16" | 0.188 | 4.8 | 0.093 | 2.36 | 0.010 | 0.250 |
| 1/4" | 0.251 | 6.4 | 0.125 | 3.18 | 0.010 | 0.250 |
| 3/8" | 0.377 | 9.6 | 0.187 | 4.75 | 0.011 | 0.279 |
| 1/2" | 0.503 | 12.8 | 0.250 | 6.35 | 0.011 | 0.279 |
| 3/4" | 0.759 | 19.3 | 0.375 | 9.53 | 0.014 | 0.356 |
| 1" | 1.000 | 25.6 | 0.500 | 12.7 | 0.016 | 0.406 |
2:1 Flexible PVDF Dimensions
Minimum Shrink Temperature: 125°C
| SIZE (In.) |
EXPANDED | RECOVERED | ||||
| MINIMUM INTERNAL DIAMETER | MAXIMUM INTERNAL DIAMETER | MINIMUM TOTAL WALL THICKNESS | ||||
| in. | mm | in. | mm | in. | mm | |
| 3/64" | 0.047 | 1.2 | 0.023 | 0.58 | 0.008 | 0.203 |
| 1/16" | 0.063 | 1.6 | 0.031 | 0.79 | 0.008 | 0.203 |
| 3/32" | 0.094 | 2.4 | 0.046 | 1.17 | 0.009 | 0.229 |
| 1/8" | 0.125 | 3.2 | 0.062 | 1.57 | 0.009 | 0.229 |
| 3/16" | 0.188 | 4.8 | 0.093 | 2.36 | 0.009 | 0.229 |
| 1/4" | 0.251 | 6.4 | 0.125 | 3.18 | 0.011 | 0.279 |
| 3/8" | 0.377 | 9.6 | 0.187 | 4.75 | 0.011 | 0.279 |
| 1/2" | 0.503 | 12.8 | 0.250 | 6.35 | 0.011 | 0.279 |
| 3/4" | 0.759 | 19.3 | 0.375 | 9.53 | 0.014 | 0.356 |
| 1" | 1.000 | 25.6 | 0.500 | 12.7 | 0.016 | 0.406 |
Kynar® Specification Values
PROPERTY |
TEST METHOD |
VALUE |
||
| Physical | Unaged | Tensile strength | ASTM D 638 | Min. 5,000 psi |
|---|---|---|---|---|
| Elongation | Min. 150% | |||
| Aged | Tensile strength | 180° C / 168 hrs | Min. 70% of the value of unaged specimens | |
| Elongation | ||||
| Deformation | 150° C / 1 hr | Max. 50% | ||
| Heat shock | 300° C / 4 hrs | No cracking, flowing or dripping | ||
| Cold bend | -55° C / 4 hrs | No cracking | ||
| Flexibility | 180° C / 168 hrs | No cracking | ||
| Secant modulus | 2% strain | Min. 120,000 psi | ||
| Electrical | Dielectric strength | Room Temp. | Min. 23.6kV / mm | |
| Volume resistivity | - | Min. 10 | ||
| Chemical | Copper corrosion | 180° C / 168 hrs | No corrosion | |
| Copper stability | 180° C / 168 hrs | No sign of degradation | ||
| Flammability | VW-1 | Pass | ||
2:1 Semi-Rigid PVDF Kynar®
Please call for immediate availability. 3 week lead time if not in stock.
Custom Sizes and Cut Pieces are NON-RETURNABLE and NON-REFUNDABLE
| PART # | NOMINAL SIZE | SIZE AFTER SHRINKING | SPOOL LENGTH | PRICE / SPOOL | PRICE / 4FT STICK |
| HSKY2-0094-SP | 3/32" | 0.05" | 500 ft. | ||
| HSKY2-0125-SP | 1/8" | 0.06" | 500 ft. | ||
| HSKY2-0188-SP | 3/16" | 0.09" | 250 ft. | ||
| HSKY2-025-SP | 1/4" | 0.13" | 250 ft. | ||
| HSKY2-0375-SP | 3/8" | 0.19" | 200 ft. | WAS |
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| HSKY2-050-SP | 1/2" | 0.25" | 200 ft. | ||
| HSKY2-075-SP | 3/4" | 0.38" | 100 ft. | ||
| HSKY2-100-SP | 1" | 0.50" | 100 ft. |
For Semi-Rigid PVDF Technical Specifications, click here
For military specifications and a manufacturers' cross reference, click here
2:1 Flexible PVDF
Please call for immediate availability. 3 week lead time if not in stock.
Custom Sizes and Cut Pieces are NON-RETURNABLE and NON-REFUNDABLE
| PART # | NOMINAL SIZE | SIZE AFTER SHRINKING | SPOOL LENGTH | PRICE / SPOOL |
| HSPVDF2-0094-SP | 3/32" | 0.05" | 500 ft. | |
| HSPVDF2-0188-SP | 3/16" | 0.09" | 250 ft. | |
| HSPVDF2-025-SP | 1/4" | 0.13" | 250 ft. | |
| HSPVDF2-0375-SP | 3/8" | 0.19" | 200 ft. | |
| HSPVDF2-050-SP | 1/2" | 0.25" | 200 ft. | |
| HSPVDF2-075-SP | 3/4" | 0.38" | 100 ft. |
For Flexible PVDF Technical Specifications. Click Here
Kynar® is a registered trademark of Atochem Corporation
Limiting Oxygen Index (LOI)
The ratio of how much oxygen - as compared to other gases - needs to be present in the air surrounding a particular material in order for that material to burn. The fact that Earth's normal atmospheric air contains around 21% oxygen is used a reference point when materials are classified into burn categories that are based on Limiting Oxygen Index. Substances that are combustible in air containing less than 21% oxygen are considered flammable, while those that burn in the range of anything greater than 21% but less than 28% are typically labeled "slow burning". Any material with an LOI that exceeds 28% is classified as self-extinguishing.
In the table below, you'll find a list of polymers commonly found in our heat shrink tubing and braided sleeving products, along with their LOIs and the burn categories each falls into.
| MATERIAL | ALTERNATE NAME | LOI | CATEGORY |
| ECTFE (Ethylene chlorotrifluoroethylene) | Halar | 64% | Self Extinguishing |
| Nomex | N/A | 28% | Slow Burning |
| Nylon 6:6 | N/A | Ranges fron 24-29% | Slow Burning to Self Extinguishing |
| PET (Polyethylene Terephthalate) | Mylar (film), Dacron (fiber) | Ranges from 21-34% | Slow Burning to Self Extinguishing |
| Polyethylene (PE) | N/A | 17% | Flammable |
| Polypropylene (PP) | polythene (in the UK) | 17% | Flammable |
| Polytetrafluoroethylene (PTFE) | Teflon | 95% | Self Extinguishing |
| Polyvinyl Chloride (PVC) | N/A | Ranges from 45-49% | Self Extinguishing |
ARTICLES - A place to find educational articles covering a wide range of topics, all categorized according to your areas of interest.Learn more
- Heat Shrink Tubing: How It Was Invented, and Why We Use It
- The Handyman's Guide to Improvisation: 7 New Ways to Use Heat Shrink Tubing
HOW-TO CORNER -
- How to use Heat Shrink Tubing
- Terminate the ends of your Braided Sleeving with Heat Shrink
- How do we measure Heat Shrink?
 2:1 Heat Shrink Tubing KitPrice $10.99 2:1 Standard Wall From $0.50 per foot 2:1 Dual Wall Call for pricing Cheap 2:1 Heat Shrink From $11.00 for 50ft spool of 3/64" |
 3:1 Standard WallFrom $0.53 per foot 3:1 Adhesive From $1.17 per foot Cheap 3:1 Heat Shrink From $14.40 per spool |
 4:1 Standard WallFrom $2.75 per foot 4:1 Adhesive From $0.95 per foot Our 4:1 heat shrink tubing is used for jacket retrofitting or repair and electrical insulation of wire assemblies with oversize components or connectors. |
Standard 6:1 Heat Shrink |
2:1 Neoprene Heat Shrink Tubing 2:1 Diesel Resistant Heat Shrink Tubing |
 Heat Shrink UV ReactiveFrom $1.00 per foot It is available in a 2:1 shrink ratio and in Luminous, Neon Pink, Neon Yellow, Neon Green, Luminous Green, and Gold. |
 Heat Shrink End CapsFrom $0.70 Secure the ends of the tubing with these caps available in black in all three sizes. |
 Conductive Heat Shrink ConnectorsFrom $3.99 per foot They are entirely coated on their inner surface providing shielding around the joints being connected. |
 Heat Shrink Tools/ Heat GunsFrom $29.99 We offer a range of options to shrink your tubing, from small torches to ovens. |
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High Temperature (Fluoropolymer) Heat Shrink Tubing |
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 Fluorinated Ethylene-Propylene (FEP) Heat Shrink TubingFrom $2.34 per foot FEP is used in cases where temperatures are not as extreme, and very high shrink ratios are not necessary. |
 Polytetrafluoroethylene (PTFE)
Heat Shrink TubingFrom $7.43 per foot PTFE is widely used in military applications because of its high continuous use temperature and outstanding chemical resistance. |
 Polyvinylidene Fluoride (PVDF, Kynar®) Heat Shrink TubingFrom $5.49 per 4 FT PVDF is used in applications where continuous operating temperatures are 150-175°C. It is used where outstanding abrasion and cut-through resistance are required. |
PTFE/FEP Dual Wall Heat Shrink Tubing From $2.97 per FT Constructed with an outer layer of heat shrinkable PTFE and an inner layer of FEP, it is easy to apply & is designed to provide a tight, moisture-proof bond. |
Cheap 6:1 Heat Shrink
