FiPur® – High-Performance Polyurethane for the Most Demanding Applications
Polyurethanes are versatile plastics produced by the reaction of polyols with isocyanates. They are characterized by their high flexibility, abrasion resistance, and chemical resistance. Under the brand name FiPur®, the Fietz Group produces high-quality, high-performance polyurethanes that impress with their extreme wear resistance, durability, and versatility – perfect for demanding applications in sealing and drive technology.
With FiPur®, the Fietz Group offers high-performance polyurethanes that excel where abrasion resistance, pressure resistance, and excellent recovery properties are required. The materials combine the elasticity of rubber with the hardness and wear resistance of plastic – making them ideal for components that must function reliably under constant stress.
Advantages of the FiPur® material
High abrasion resistance, minimal wear
Excellent pressure resistance
up to 400 bar
Very low permanent deformation
Good dynamic properties
greater protection against leaks
Sustainable solutions
through reduced maintenance costs, improved environmental protection, and increased plant availability
FiPur® Materials at a Glance
Applications
Mobile hydraulics, gas springs, and automotive applications; other custom applications, e.g., in gas fittings
Hardness
93 Shore A
Temperature range
ASTM D 1329
TR10 = -53.0°C
TR70 = -28.3°C
Special features
extremely good cold flexibility without compromising wear resistance
Mobile hydraulics, gas springs, and automotive applications; other custom applications, e.g., in gas fittings
Hardness
93 Shore A
Temperature range
ASTM D 1329
TR10 = -53.0°C
TR70 = -28.3°C
Special features
extremely good cold flexibility without compromising wear resistance
Applications
Pneumatics, electronics, special applications
Hardness
84 Shore A
Temperature range
ASTM D 1329
TR10 = -57°C
TR70 = -46.8°C
Special features
soft material for low temperatures
Pneumatics, electronics, special applications
Hardness
84 Shore A
Temperature range
ASTM D 1329
TR10 = -57°C
TR70 = -46.8°C
Special features
soft material for low temperatures
Applications
Piston seals and wiper elements in hydraulic and gas spring technology; double wipers for valve technology
Hardness
55 Shore D
Temperature range
-30°C to 110°C
Special features
Very high compatibility with mineral oils (HL, HLP, HLPD, etc.), excellent extrusion resistance for highly stressed sealing elements, good recovery properties despite high hardness, sealing rings can be installed via snap-fit assembly
Piston seals and wiper elements in hydraulic and gas spring technology; double wipers for valve technology
Hardness
55 Shore D
Temperature range
-30°C to 110°C
Special features
Very high compatibility with mineral oils (HL, HLP, HLPD, etc.), excellent extrusion resistance for highly stressed sealing elements, good recovery properties despite high hardness, sealing rings can be installed via snap-fit assembly
Applications
In pneumatic cylinders and valves with a service life exceeding 10,000 km
Hardness
82 Shore D
Temperature range
-40°C to 90°C
Special features
Very good dynamic behavior, outstanding wear resistance combined with excellent dynamic sealing properties, enabling very low leakage rates, very low coefficients of friction
In pneumatic cylinders and valves with a service life exceeding 10,000 km
Hardness
82 Shore D
Temperature range
-40°C to 90°C
Special features
Very good dynamic behavior, outstanding wear resistance combined with excellent dynamic sealing properties, enabling very low leakage rates, very low coefficients of friction
Applications
Pneumatic applications, particularly for lip seals in mini-pneumatic cylinders, low-pressure hydraulics, and gas springs
Hardness
90 Shore A
Temperature range
-35°C to 110°C
Special features
Very high wear resistance with good low-temperature performance, good resistance to mineral oils and lubricating greases
Pneumatic applications, particularly for lip seals in mini-pneumatic cylinders, low-pressure hydraulics, and gas springs
Hardness
90 Shore A
Temperature range
-35°C to 110°C
Special features
Very high wear resistance with good low-temperature performance, good resistance to mineral oils and lubricating greases
Application
For hydraulic and gas spring applications involving critical media such as biofluids, synthetic esters, and water-based fluids like HFA, HFB, etc.
Hardness
94 Shore A
Temperature range
-30°C to 110°C
Special features
High stability against hydrolyzing media, resistant to alkaline greases in pneumatic cylinders as well as to alkaline and acidic cleaners
For hydraulic and gas spring applications involving critical media such as biofluids, synthetic esters, and water-based fluids like HFA, HFB, etc.
Hardness
94 Shore A
Temperature range
-30°C to 110°C
Special features
High stability against hydrolyzing media, resistant to alkaline greases in pneumatic cylinders as well as to alkaline and acidic cleaners
Applications
Food industry
Hardness
94 Shore A
Temperature range
-25°C to 110°C
Special Features
The material is abrasion- and hydrolysis-resistant, as well as resistant to USDA-H1 greases and acidic or alkaline cleaners. It is suitable for seals in injection molding as well as for prototypes and small series in turning and meets the requirements of LFGB, (EC) 1935/2004, (EC) 10/2011, FDA 21 CFR 177.2600 e) and f), and 3A Sanitary Standard Class 3.
Food industry
Hardness
94 Shore A
Temperature range
-25°C to 110°C
Special Features
The material is abrasion- and hydrolysis-resistant, as well as resistant to USDA-H1 greases and acidic or alkaline cleaners. It is suitable for seals in injection molding as well as for prototypes and small series in turning and meets the requirements of LFGB, (EC) 1935/2004, (EC) 10/2011, FDA 21 CFR 177.2600 e) and f), and 3A Sanitary Standard Class 3.
Typical Applications
FiPur® high-performance polyurethanes are suitable for a wide range of applications—anywhere demanding sealing solutions are required. Fietz offers reliable sealing systems for all relevant operating temperatures and media.
Hydraulic valves
Gas fittings for LPG, CNG, and hydrogen tanks
Process control valves for the food industry
Lockable industrial gas springs
Tank plates and industrial gas springs
Water Pump Industry
Adjustable industrial gas springs
Sealing products for pneumatic systems
Fietz Product Examples
FiPur® 201 seal for the food industry
Rod seals made of FiPur® 180 for a pneumatic cylinder
Scraper made of FiPur® 200
FiPur® Material Overview
Vacuum piston made of FiPur® 200
Valve seals made of FiPur® 200 and FiPur® 111
FiPur® cable gland
Double scraper made of FiPur® 180
FiPur® coupling stars
Interested?
Our team of application engineering and materials experts looks forward to hearing from you and assisting you with:
- Application consulting
- Seal design
- Prototyping
- Project management
- Material selection
- Series production
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