Finger Lakes Extrusion’s PolyFLEX™ 50 / 50B Polyethylene Tubing offers a semi-rigid, chemically resistant solution for fluid transfer applications. Manufactured from linear low-density polyethylene (LLDPE), this tubing provides exceptional stress crack resistance, flexibility, and compliance with food safety regulations. Whether used in chemical processing, food and beverage transfer, instrumentation, or outdoor applications, PolyFLEX™ 50 / 50B Polyethylene Tubing delivers reliable performance in demanding environments.
Regulatory Compliance & Safety
PolyFLEX™ 50 / 50B Polyethylene Tubing meets FDA regulation 21 CFR 177.1520, ensuring suitability for food and beverage applications. It is also RoHS and REACH-compliant, free from PFAS, Proposition 65-listed chemicals, and EPA TSCA-listed substances.
Our tubing’s advanced chemical composition significantly minimizes extractables, effectively reducing contamination risks and making it exceptionally suitable for high-purity applications while supporting environmental safety.
Material Performance & Durability
PolyFLEX™ 50 / 50B Polyethylene Tubing is designed for chemical resistance and structural integrity. Its semi-rigid construction enhances durability over traditional low-density polyethylene and improves stress crack resistance. The tubing operates within a temperature range of -100°F to 175°F (-73°C to 79°C) and maintains working pressures of 120 PSI at 73°F and 60 PSI at 125°F.
With a tensile strength of 4,600 PSI and an ultimate elongation of 660%, PolyFLEX™ 50 / 50B Polyethylene Tubing provides long-lasting performance in industrial and commercial applications.
PolyFLEX™ 50 - Natural Polyethylene Tubing
PolyFLEX™ 50 is semi-rigid and translucent, allowing users to visually monitor fluid flow while benefiting from its broad chemical compatibility. It is suitable for:
- Food & Beverage Processing – Meets FDA standards for safe handling of consumables.
- Instrumentation & Air Lines – Maintains pressure stability and fluid integrity.
- Chemical Transfer – Resists strong and weak acids, bases, and organic solvents.
PolyFLEX™ 50B - Black Polyethylene Tubing
- Outdoor Fluid Systems – Resists UV degradation for long-term durability.
- Color-Coded Processing Lines – Provides easy identification of different fluid systems.
- Light-Sensitive Media Transfer – Prevents exposure-related contamination.
Key Features
- Semi-Rigid Structure – Provides enhanced stress crack resistance over low-density polyethylene.
- Low Extractable Levels – Reduces contamination risks in high-purity applications.
- Wide Operating Temperature Range – Performs effectively in extreme hot and cold conditions.
- Exceptional Chemical Resistance – Compatible with a broad range of chemicals, including acids, bases, and solvents.
- UV-Resistant (PolyFLEX™ 50B Only) – Prevents algae growth and degradation in outdoor environments.
Common Applications
PolyFLEX™ 50 / 50B Polyethylene Tubing is designed for diverse industries requiring durable and chemically resistant tubing, including:
- Food & Beverage Processing – Safe for fluid transfer in commercial food production.
- Chemical Handling & Instrumentation – Ensures secure transfer of acids, bases, and solvents.
- Pneumatic & Air Systems – Supports regulated airflow in industrial applications.
- Outdoor & Light-Sensitive Fluid Transfer – PolyFLEX™ 50B protects against UV exposure for long-term stability.
Specifications
- This product meets the requirements of FDA under paragraph 177.1520
- 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 | Excellent |
|---|---|
| Organic Acids | Good |
| Weak Acids | Excellent |
| Bases – Weak | Excellent |
| Bases – Strong | Good |
| Solvents | Good |
Size Availability & Ordering
PolyFLEX™ 50 / 50B Polyethylene Tubing is available in multiple inner and outer diameter configurations to accommodate specific flow rates and pressure requirements. Standard case quantities range from 50 to 500 feet per coil, with custom sizes available upon request.
Contact Finger Lakes Extrusion to learn more about available sizes and technical specifications or to request a quote.
PolyFLEX™ 50
Size Chart
| Catalog Number | ID Size In. | OD Size In. | Wall | Operating Pressure PSIG 73°F | Case Qty. Ft. |
|---|---|---|---|---|---|
| 8750-4245 | 1/8 | 1/4 | 1/16 | 200 | 100 |
| 8750-4281 | .170 | 1/4 | .040 | 120 | 100 |
| 8750-8281 | .170 | 1/4 | 0.040 | 120 | 500 |
| 8750-4335 | 1/4 | 3/8 | 1/16 | 120 | 100 |
| 8750-8335 | 1/4 | 3/8 | 1/16 | 120 | 500 |
| 8750-4430 | 3/8 | 1/2 | 1/16 | 86 | 100 |
| 8750-8430 | 3/8 | 1/2 | 1/16 | 86 | 500 |
| 8750-4505 | 1/2 | 5/8 | 1/16 | 66 | 100 |
| 8750-8505 | 1/2 | 5/8 | 1/16 | 66 | 500 |
| 8750-2605 | 3/4 | 1 | 1/8 | 80 | 50 |
Physical Properties
| Properties | ASTM Method | Value Rating |
|---|---|---|
| Hardness; Shore A (+/-5) | D2240 | 52 |
| Vacuum | Not Recommended | |
| Operating temperature range | -100° – 175°F -73° – 79°C | |
| Maximum Working Pressure | 73°F / 120PSI 25°F / 60PSI | |
| Testing Size | 1/4″ID x 1/16″W | |
| Color | Natural Translucent | |
| Odor | Slight | |
| Taste | None | |
| Specific Gravity; g/cm³ | D792 | .92 |
| Tensile Strength; psi | D638 | 5100 |
| Ultimate Elongation; % | D638 | 670 |
| Flame Resistance | D568 | Slow Burn |
PolyFLEX™ 50B
Size Chart
| Catalog Number | ID Size In. | OD Size In. | Wall | Operating Pressure PSIG 73°F | Case Qty. Ft. |
|---|---|---|---|---|---|
| 8752-4245 | 1/8 | 1/4 | 1/16 | 200 | 100 |
| 8725-4281 | .170 | 1/4 | .040 | 120 | 100 |
| 8752-4335 | 1/4 | 3/8 | 1/16 | 120 | 100 |
| 8752-8335 | 1/4 | 3/8 | 1/16 | 120 | 500 |
| 8752-4430 | 3/8 | 1/2 | 1/16 | 86 | 100 |
| 8752-8430 | 3/8 | 1/2 | 1/16 | 86 | 500 |
| 8752-4505 | 1/2 | 5/8 | 1/16 | 66 | 100 |
Physical Properties
| Properties | ASTM Method | Value Rating |
|---|---|---|
| Hardness; Shore A (+/-5) | D2240 | 52 |
| Vacuum | Not Recommended | |
| Operating temperature range | -100° – 175°F -73° – 79°C | |
| Maximum Working Pressure | 73°F / 120PSI 125°F / 60PSI | |
| Testing Size | 1/4″ID x 1/16″W | |
| Color | Black | |
| Odor | Slight | |
| Taste | None | |
| Specific Gravity; g/cm³ | D792 | .92 |
| Tensile Strength; psi | D638 | 5100 |
| Ultimate Elongation; % | D638 | 670 |
| Flame Resistance | D568 | Slow Burn |
* 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.
