Ester-PUR FLEX™ 85

Polyurethane

Ester-PUR FLEX™ 85

Finger Lakes Extrusion Corp. is a trusted name in American-made tubing solutions, known for delivering high-performance products that meet the rigorous demands of industries requiring reliability and durability. We focus on advanced materials and strict quality standards to create innovative tubing solutions for challenging applications. Among our premium offerings is the Ester-PUR FLEX™ 85 tubing line, designed to provide excellent abrasion resistance, chemical compatibility, and flexibility, making it a dependable choice for various industrial needs.

Ester-PUR FLEX™ 85 Tubing: A Superior Tubing Solution

The Ester-PUR FLEX™ 85 tubing line combines quality, sustainability, and innovation to meet the needs of demanding industries. Made from ester-based polyurethane resin, this tubing offers enhanced abrasion and impact resistance compared to traditional materials like PVC. Its glass-like clarity, flexibility, and plasticizer-free design make it versatile for various applications while minimizing extractables, particularly in high-purity environments. The tubing also delivers substantial resistance to aliphatic hydrocarbons, petroleum products, and atmospheric ozone, maintaining performance in challenging conditions. However, it is not recommended for aqueous solutions, as it is specifically engineered for other industrial applications.

  • Decades of Expertise: We bring knowledge and experience to producing high-quality tubing solutions.
  • Reliable Manufacturing: All our products are proudly made in the USA using advanced materials and processes to meet strict industry standards.
  • Regulatory Compliance: Our tubing meets FDA food-contact standards (21 CFR 177.1680 & 177.2600) and is NSF-61 listed for potable water use. It also complies with RoHS, REACH, and Proposition 65 regulations.
  • Performance-Driven Design: Ester-PUR FLEX™ 85 is built to provide superior durability, chemical resistance, and flexibility for demanding applications.
  • Made from pure polyurethane resin, containing no plasticizers and featuring very low levels of extractables.
  • Resistant to tearing, abrasion, atmospheric ozone, and petroleum-based products.
  • Maintains flexibility even in low-temperature environments.
  • Complies with FDA food-contact regulations (CFR 21), NSF Standard 61, RoHS, and REACH standards.
  • Free from substances listed under California Proposition 65.
  • Resistant to atmospheric ozone, aliphatic hydrocarbons and petroleum products
  • Pure polyurethane; contains no plasticizers and low levels of extractables
  • Complies with FDA CFR21 food packaging
  • Tough; resists tearing and abrasion
  • Flexible at low temperatures
  • Meets RoHS and REACH standards, also does not contain any substances listed on Proposition 65
  • Finger Lakes Extrusion Corp. designed Ester-PUR FLEX™ 85 tubing to perform in a wide range of specialized applications, including:
    • High-purity applications requiring low extractables.
    • Fuel lines for hydrocarbon-based fuels.
    • Instrumentation and cable jacketing where durability and clarity are essential.
    • Gas sampling lines for industrial and environmental monitoring.
    Important Note: This product is not intended for use with aqueous solutions.

All Ester-PUR™ 85 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

Ratings for ideal conditions 73°F / 25°C

Strong Mineral AcidsFair
Organic AcidsNot Recommended
Weak AcidsGood
Bases – WeakGood
Bases – StrongGood
SolventsFair

 

Size Chart

Catalog NumberID Size In.OD Size In.WallOperating Pressure
PSIG 73°F
Case Qty. Ft.
8685-41701/161/81/32106100
8685-42401/83/161/3270100
8685-42451/81/41/16110100
8685-42903/161/41/3256100
8685-42953/165/161/1686100
8685-43301/45/161/3250100
8685-43351/43/81/1676100
8685-43401/47/163/3296100
8685-43451/41/21/8110100
8685-43905/167/161/1666100
8685-44005/169/161/8100100
8685-44303/81/21/1656100
8685-44353/89/163/3276100
8685-44403/85/81/890100
8685-44657/165/83/3266100
8685-45051/25/81/1640100
8685-45151/23/41/876100
8685-45655/813/163/3252100
8685-45705/87/81/860100
8685-26053/411/85650
8685-26407/81-1/81/84650
8685-267511-1/41/84050

Physical Properties

PropertiesASTM MethodValue Rating
Hardness; Shore A (+/-5)D224085
Vacuum Not Recommended
Operating temperature range -70° – 175°F
-56° -85°C
Maximum Working Pressure 73°F / 76PSI
125°F / 38PSI
Testing Size 1/4″ID x 1/16″W
Color Transparent Natural
Odor Slight
Taste N/A
Specific Gravity; g/cm³D7921.20
Tensile Strength; psiD6385000
Ultimate Elongation; %D638500
Flame ResistanceD568Burns

* 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.

Partnering with Finger Lakes Extrusion Corp.

At Finger Lakes Extrusion Corp., we provide products that meet the highest quality standards while addressing the unique challenges faced by our customers. The Ester-PUR FLEX™ 85 tubing line combines innovation and reliability, making it a trusted choice for numerous industries. Contact us today to learn more about how our tubing solutions can support your applications.

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Natalie LeGrett

Customer Account Specialist

Natalie is a 2011 graduate of St. John Fisher College with a bachelor’s degree in business management and concentration in Human Resources. After 14 years of working in the Staffing Industry as a Recruiter and other various roles she was looking to switch gears and start a new career path. She had ties with Erica as she assisted in staffing temporary staff to FLEX for years. She decided not to return to the corporate world after maternity leave and start at FLEX where she has been a Customer Account Specialist. She is passionate about her family and two sons who always keep her on her toes; we enjoy creating memories as a family and enjoying the sunshine every chance we get! 

Keith Ellsworth

Production Manager

Keith has been a member of our team since 2007. With a degree in Business and a minor in Computer Science along with decades of mechanical experience, Keith brings a great deal of knowledge to the company. Keith coordinates all production activities and works with customers to help develop products that fit their needs. After years of racing stock cars and taking his motorcycle to track days, this busy Dad of two treasures the days when he gets to ride his motorcycle to work.

Phil Scott

President of Operations

Phil has been a member of our team since 2009. Phil is a 2008 graduate of SUNY ESF with a degree in Conservation Biology. After gaining hands on experience on the extrusion lines during the summers of his college career, Phil decided that working at FLEX™ was better suited to him than a career in the environmental field. Phil handles all building and equipment maintenance and purchases. He is our resident outdoorsman, most passionate about white tail deer hunting and management.

Erica C. S. Wright

President of Sales

Erica is a 2006 graduate of SUNY Geneseo with a degree in Mathematics with a minor in Business Studies. After 4 years in Corporate America working as an actuary, she was looking for a change. Finger Lakes Extrusion offered her that change and in 2009 she made the switch. Erica handles all finance and human resource functions at Finger Lakes Extrusion along with sales travel and quoting. All of these functions guarantee that no day is the same – her favorite characteristic of the job. Triathlons and lake life with her family are Erica’s most treasured moments.