Ether-PUR FLEX™ 84 Polyurethane Tubing is a high-performance solution designed for applications that demand superior flexibility, durability, and chemical resistance. This tubing is manufactured from ether-based polyurethane and provides high purity, abrasion resistance, and hydrolytic stability, making it ideal for industries requiring reliable fluid transfer. Whether used in instrumentation, water purification, or petroleum handling, Ether-PUR FLEX™ 84 Polyurethane Tubing delivers exceptional performance in demanding environments.
Regulatory Compliance & Safety
Ether-PUR FLEX™ 84 Polyurethane Tubing meets FDA food-contact regulations under 21 CFR 177.1680 and 177.2600, ensuring safety for repeated use in food and beverage applications. It is produced from an NSF Standard 61-listed compound, making it suitable for potable water systems.
This tubing is also RoHS and REACH compliant, free from PFAS, Proposition 65-listed chemicals, and EPA TSCA-listed substances. These regulatory approvals make Ether-PUR FLEX™ 84 Polyurethane Tubing a trusted option for industries requiring high-purity fluid handling while ensuring strict safety and environmental standards compliance.
Material Performance & Durability
Ether-PUR FLEX™ 84 Polyurethane Tubing is designed to resist tearing, abrasion, and impact, offering significantly greater durability than standard PVC alternatives. Its pure polyurethane composition eliminates the need for plasticizers, ensuring low extractable levels and reducing the risk of contamination in high-purity applications.
This tubing operates within a temperature range of -70°F to 175°F (-56°C to 80°C) and supports working pressures of 76 PSI at 73°F and 38 PSI at 125°F. With a tensile strength of 5,500 PSI and an ultimate elongation of 500%, Ether-PUR FLEX™ 84 Polyurethane Tubing provides exceptional strength and flexibility.
Key Features
- High-Purity Material: Manufactured from ether-based polyurethane, ensuring minimal extractables and no plasticizers.
- Exceptional Durability: Resistant to abrasion, impact, and tearing, making it ideal for long-term performance in demanding environments.
- Superior Chemical Resistance: Compatible with aqueous solutions, petroleum-based products, and deionized/distilled water.
- Hydrolysis Resistance: Outperforms ester-based polyurethanes in applications exposed to moisture and humidity.
- Flexible at Low Temperatures: Maintains elasticity even in subzero conditions.
- Transparent Design: Allows for visual monitoring of fluid flow.
Ether-PUR FLEX™ 84
- Clear and Flexible
- Tough; resists tearing and abrasion
- Superior resistance to hydrolytic degradation compared to Ester-PUR FLEX™ 85
- Flexible at low temperatures
- High impact resistance
- Pure polyurethane; contains no plasticizers and low levels of extractables
- Resistant to atmospheric ozone
- Complies with FDA CFR21 for food packaging
- Meets RoHS and REACH standards, also does not contain any substances listed on Proposition 65
- Made from NSF-61 certified compound
Common Applications
Ether-PUR FLEX™ 84 Polyurethane Tubing is engineered for applications requiring high purity, flexibility, and chemical resistance, including:
- Water Purification & Treatment: Ideal for distilled, deionized, demineralized, and reverse osmosis-treated water systems.
- Instrumentation & Laboratory Use: Provides reliable fluid transfer for analytical and diagnostic equipment.
- Petroleum & Industrial Fluids: Compatible with petroleum-based products, ensuring safe transport in fuel and oil applications.
- Food & Beverage Processing: Complies with FDA food-contact regulations 21 CFR 177.1680 (Polyurethane Resins) and 177.2600 (Rubber Articles for Repeated Use), subject to applicable limitations. It is also listed under NSF Standard 61 for potable water use.
- Medical & Pharmaceutical Manufacturing: Meets strict safety standards for applications requiring minimal contamination risk.
Specifications
All Ether-PUR FLEX™ 84 tubing products offer the following:
- Complies with FDA food-contact regulations 21 CFR 177.1680 (Polyurethane Resins) and 177.2600 (Rubber Articles Intended for Repeated Use), subject to the limitations of and any other applicable regulations. In addition, this material is listed under NSF standard 61 for use in potable water applications.
- Meets RoHS and REACH standards, also does not contain any substances listed on Proposition 65
Chemical Resistance
Ratings for ideal conditions 73°F / 25°C
| Strong Mineral Acids | Fair |
|---|---|
| Organic Acids | Not Recommended |
| Weak Acids | Good |
| Bases – Weak | Good |
| Bases – Strong | Good |
| Solvents | Fair |
Size Availability & Ordering
Ether-PUR FLEX™ 84 Polyurethane Tubing is available in multiple inner and outer diameter configurations to accommodate specific flow and pressure requirements. Standard case quantities range from 50 to 100 feet per coil, with custom lengths available upon request.
Call Finger Lakes Extrusion today for more details on available sizes and technical specifications or to request a quote.
Size Chart
| Catalog Number | ID Size In. | OD Size In. | Wall | Operating Pressure PSIG 73°F | Case Qty. Ft. |
|---|---|---|---|---|---|
| 8684-4170 | 1/16 | 1/8 | 1/32 | 90 | 100 |
| 8684-4240 | 1/8 | 3/16 | 1/32 | 58 | 100 |
| 8684-4245 | 1/8 | 1/4 | 1/16 | 92 | 100 |
| 8684-4290 | 3/16 | 1/4 | 1/32 | 48 | 100 |
| 8684-4295 | 3/16 | 5/16 | 1/16 | 72 | 100 |
| 8684-4330 | 1/4 | 5/16 | 1/32 | 48 | 100 |
| 8684-4335 | 1/4 | 3/8 | 1/16 | 76 | 100 |
| 8684-4340 | 1/4 | 7/16 | 3/32 | 80 | 100 |
| 8684-4345 | 1/4 | 1/2 | 1/8 | 92 | 100 |
| 8684-4390 | 5/16 | 7/16 | 1/16 | 56 | 100 |
| 8684-4400 | 5/16 | 9/16 | 1/8 | 84 | 100 |
| 8684-4430 | 3/8 | 1/2 | 1/16 | 48 | 100 |
| 8684-4435 | 3/8 | 9/16 | 3/32 | 65 | 100 |
| 8684-4440 | 3/8 | 5/8 | 1/8 | 76 | 100 |
| 8684-4465 | 7/16 | 5/8 | 3/32 | 56 | 100 |
| 8684-4505 | 1/2 | 5/8 | 1/16 | 34 | 100 |
| 8684-4515 | 1/2 | 3/4 | 1/8 | 64 | 100 |
| 8684-4565 | 5/8 | 13/16 | 3/32 | 44 | 100 |
| 8684-4570 | 5/8 | 7/8 | 1/8 | 50 | 100 |
| 8684-2605 | 3/4 | 1 | 1/8 | 48 | 50 |
| 8684-2640 | 7/8 | 1-1/8 | 1/8 | 38 | 50 |
| 8684-2675 | 1 | 1-1/4 | 1/8 | 34 | 50 |
Physical Properties
| Properties | ASTM Method | Value Rating |
|---|---|---|
| Hardness; Shore A (+/-5) | D2240 | 84 |
| Vacuum | Not Recommended | |
| Operating temperature range | -70° – 175°F -56° – 80°C | |
| Maximum Working Pressure | 73°F / 76PSI 125°F / 38PSI | |
| Testing Size | 1/4″ID x 1/16″W | |
| Color | Transparent Natural | |
| Odor | None | |
| Taste | N/A | |
| Specific Gravity; g/cm³ | D792 | 1.12 |
| Tensile Strength; psi | D638 | 5500 |
| Ultimate Elongation; % | D638 | 500 |
| Flame Resistance | D568 | Burns |
* The above is accurate to the best of the Company’s knowledge, however, these are typical values and should not be used as a certification. All materials should be tested for suitability in their intended use.
