Solvay Gives You The Performance You Need

Solvay offers the largest selection of sulfone polymers and fluoropolymers for membranes. They have the solubility, purity and range of molecular weight needed to make hollow fiber, flat sheet and tubular membranes with the pore size and separation selectivity you need. Available in pellets and powders, our products cover a wide range of molecular weights with controlled viscosities, making it easier to fine-tune dope solutions and maximize process stability. Technologies range from reverse osmosis (RO) to microfiltration (MF) for symmetric and asymmetric membranes.

Toughness and chemical resistance along with hydrolytic and oxidative stability help membranes tolerate a variety of feed streams and cleaning methods. High molecular weight grades improve fiber strength and minimize fiber breakage.

Fluoropolymers Sulfone Polymers
  • Solef® PVDF
  • Halar® ECTFE
  • Hyflon® AD
  • Algoflon® PTFE
  • Aquivion™ PFSA
  • Udel® PSU
  • Veradel® PESU
  • Radel® PPSU

 

Bioprocessing & Medical Filtration Membranes
  • Biopharmaceutical manufacturing
  • Protein separation and transport
  • Enzyme production
  • Cell harvesting
  • Virus production
  • Sterilized water production
  • Devices for artificial organs
  • Blood purification

Fluoropolymer Solutions : Solef® PVDF

Sulfone Polymers Solutions : Udel® PSU, Veradel® PESU

Food & Beverage Processing

Membrane separation processes can help increase the recovery of valuable food products while reducing the volume of waste streams generated. Typical applications include:

  • Fruit juice processing
  • Cold beer sterilization
  • Milk fraction separations
  • Protein separations
  • Bacteria removal
  • Whey concentration and demineralization


Solvay’s fluoropolymers and sulfone polymers are certified for food contact and are frequently used in applications using MF, UF, NF and RO filtration.

Radel® PPSU can withstand over 1,000 cycles of repeated steam sterilization, making it an excellent choice for membranes used in dairy applications.

Fluoropolymer Solutions : Solef® PVDF

Sulfone Polymers Solutions : Radel® PPSU, Udel® PSU, Veradel® PESU

Gas Separation Membranes

Udel® PSU

Udel® PSU was used in the early 1980’s to make the world’s first commercial gas separation membrane able to separate hydrogen from ammonia purge-gas streams. Soon after that, this material was used to make membranes for separating nitrogen and oxygen from air. Today’s gas separation membranes are made using sulfone polymers as well as fluoropolymers.

Key Features

  • Very high purity
  • Tightly controlled molecular weight
  • Good balance of permeability, selectivity and affordability for specific separation types
  • Cost-effective production of high-quality, extremely fine hollow fiber membranes

Typical Applications

  • Carbon dioxide removal (e.g., from natural gas)
  • Natural gas liquids removal and dehydration
  • Hydrogen recovery from refinery wet gas and fuel gas streams
  • Olefin/paraffin separations (e.g., propane/propylene)
  • Carbon dioxide sequestration from flue gases


Hyflon® AD

Hyflon® AD amorphous perfluoropolymers are suitable for polymeric gas separation membranes used in the separation of gases or vapors, the recovery of gases and the enrichment of air in pharmaceutical or chemical processing applications.

Fluoropolymer Solutions : Hyflon® AD

Emerging Gas Separation Applications

High-performance polymers may also have a good fit with emerging polymer membrane applications including carbon dioxide removal (e.g., from natural gas), natural gas liquids removal and dehydration, hydrogen recovery from refinery wet gas and fuel gas streams, olefin/paraffin separations (e.g., propane/propylene) and carbon dioxide sequestration from flue gases.

For those applications requiring extremely high hydrophobicity and chemical resistance, Solvay offers its fluoroploymer Halar® ECTFE.

Fluoropolymer Solutions : Halar® ECTFE

Hemodialysis Membranes

Udel® PSU

Udel® PSU is used around the world to make dialysis membranes, which serve as artificial kidneys for a growing number of our population. Polysulfone has become the polymer of choice for this life-saving application and offers several advantages over cellulose acetate.

  • Easy to form fine hollow fiber membranes
  • Dope solution stability
  • Excellent biocompatibility
  • Sterilizeable by steam, ethylene oxide and e-beam radiation

Udel® P-3500 LCD MB is a tough high-strength grade that's well-suited for dialysis membranes. Its low level of cyclic dimer can improve the stability and shelf life of dope solutions. A range of narrow molecular weights with controlled viscosities makes it easier to fine-tune dope solutions and optimize your membrane manufacturing process.

Veradel® PESU

Veradel® PESU offers many of the same features as Udel polysulfone with the added benefit of high heat resistance.

Specialty polysulfone grades are also available for manufacturers using PVP (polyvinylpyrrolidone).

Sulfone Polymers Solutions : Udel® PSU, Veradel® PESU

Water Treatment Membranes

High-Pressure Filtration

Udel® PSU has long been the industry standard for making the support layers used in the production of RO and NF thin-film composite membranes. Udel P-3500 LCD MB is used around the world for making high-pressure water filtration membranes.

Key Features

  • Cost-effective processing by solution casting
  • Excellent mechanical properties
  • Stable at pH levels from 2-13
  • Outstanding hydrolytic stability
  • Excellent caustic resistance
  • Good resistance to moderate concentrations of chlorine
  • Low levels of extractible and insoluble materials
  • Global agency approvals

Low-Pressure Filtration

Solef® PVDF has become an industry standard for submerged UF and MF hollow fiber membrane systems, especially in the rapidly growing membrane bioreactor (MBR) segment.

Key Features

  • Outstanding processability with a large number of grades
  • Excellent impact strength and mechanical properties
  • Good resistance to organic fouling
  • Stable at pH levels from 1 to 11
  • Excellent chlorine resistance
  • Excellent UV resistance
  • Very high purity
  • Global agency approvals

Udel® PSU and Veradel® PESU  are Sulfone Polymers for Membranes used specifically to make encased UF and MF membranes.

Algoflon® DF powders are easily expanded after the extrusion of the polymeric matrix without the use of soluble fillers, foaming agents or chemical additives. This process generates the physical creation of a huge number of small pores in the structure of an object made of PTFE resulting in new outstanding properties.

In particular uniaxially stretched tubes are used for the manufacture of hollow fiber membranes for liquid filtration(such as water treatment),while multiaxially stretched membranes have several applications which include gaskets, filters for filtration of gases and liquids and membranes for fuel cells.

Fluoropolymer Solutions : Solef® PVDF, Algoflon® DF Powders

Sulfone Polymers Solutions : Udel® PSU, Veradel® PESU

Proven Membrane Performance

Solvay’s fluoropolymers are used to make microfiltration and ultrafiltration flat sheet and hollow fiber membranes for a wide range of bioprocessing and medical filtration applications.

Molecular weights with controlled viscosities along with very high purity levels make these materials an excellent choice for membranes covering a broad range of porosity and shapes.

Fluoropolymers for membranes    
  Pellet Powder
Solef® PVDF 6010 6010
1015
6020
Halar® ECTFE 901
902
 
Algoflon® PTFE   Algoflon® DF
  Membrane Dispersion
Aquivion® PFSA E79 
E87
D83

 

Fluoropolymer Solutions

Excellent chemical resistance combined with hydrolytic stability, high strength and the ability to operate over a broad pH range makes these polymers the right choice for membranes used in demanding end-use environments.

Solef® PVDF

Solef® PVDF homopolymers are used to make durable, long-lasting membranes. Their toughness, chemical resistance and oxidative stability allow membranes to tolerate a wide variety of feed streams and cleaning methods. These materials are soluble in conventional processing solvents to make hollow fiber and flat sheet membranes by DIPS and TIPS processes.

Solef® PVDF homopolymers are made using a suspension-type polymerization process which provides a linear, gel-free product. They are available in powders and pellets that cover a wide range of molecular weights. High molecular weight grades improve fiber strength and minimize fiber breakage.

Typical Applications

  • Low pressure water filtration
  • Wastewater treatment
  • RO/NF pre-treatment

Key Features

  • High purity
  • Broad chemical resistance
  • Excellent mechanical properties
  • Continuous use up to 150°C
  • Excellent resistance to aging
  • Easy processing by solution
  • Broad molecular weight and high branching
  • Physiologically harmless and approved for contact with food products
SOLEF® PVDF GRADES FOR MEMBRANES    
Pellet Powder Typical Mol Wt, Mw (g/mol)*
Solef® 6010 Solef® 6010 300-320
  Solef® 1015 570-600
  Solef® 6020 670-700

*Data from GPC in DMAc with calibration in polystyrene 
**10% solids solution in NMP, 25°C

Solvents for Solef® PVDF      
Good Solvents Good Swelling Agent Poor Swelling Agents Non-Solvents
DMF 
DMAc 
NMP 
TEP 
DMSO
Acetone 
Cyclohexanone 
g-Butyrolactone
Tetrahydrofuran 
Methyl-Ethyl Ketone
Water 
Methanol 
Ethanol 
Toluene 
n-Hexane

Abbreviations 
DMAc: N,N-Dimethylacetamide 
DMF: N,N-Dimethyl Formamide 
DMSO: Dimethyl Sulfoxide 
NMP: N-Methyl-2-Pyrrolidone 
TEP: Triethyl Phosphate

Halar® ECTFE

Halar® ECTFE is based on ethylene and chlorotrifluoroethylene. It offers outstanding chemical resistance over a broad temperature range and is stable at pH levels from 1 to 14.

Because of its exceptional chemical resistance, the material cannot be processed using solution phase inversion. Instead, it must be processed at temperatures close to its melting point (200 –240°C) using a TIPS process for hollow fibers. Two grades having different molecular weights and melt temperatures are available.

Key Features

  • Outstanding resistance to ozone and chlorine
  • Stable at pH levels from 1 to 14
  • Limited solubility in organic solvents
  • Very good tensile properties
  • Processable by TIPS technology
  • FDA compliance for selected grades
Halar® ECTFE Grades for Membranes  
Pellet Melt Flow Index, g/10 min 
ASTM D 1238, 275°C
Halar® 901 1.0 (tested at 2.16 kg)
Halar® 902 1.0 (tested at 5.0 kg)

 

Physical Properties
Physical Properties              
Property Test Method Units Solef® 
6010
Solef® 
1015
Solef® 
6020
Halar® 
901
Halar® 
902
Form     pellet, 
powder
powder powder pellets pellets
Density ASTM D 792 g/cm3 1.78 1.78 1.78 1.68 1.71
Molecular Weight, Mw GPC vs PS 
standards
g/mol 
x 103
320 570 700    
Polydispersity     2.1 2.4 2.2    
Solution Viscosity Brookfield cp 330(1) 1,400(1) 1,700(1)    
Melt Flow Index ASTM D g/10 min 6.0(2) 0.2(2) 1.3(3) 1.0(4) 1.0(5)
Water Absorption 
24 hours, 23°C
ASTM D 570 % < 0.04 < 0.04 < 0.04 < 0.1 < 0.1

(1)10% NMP, 23°C, 50 rpm 
(2)Melt flow condition 230°C, 5.0 kg (ASTM D 638) 
(3)Melt flow condition 230°C, 2.16 kg (ASTM D 638) 
(4)Melt flow condition 275°C, 2.16 kg 
(5)Melt flow condition 275°C, 5.0 kg

Mechanical Properties
Mechanical Properties              
Property Test Method
Units
Solef®   
6010
Solef® 
1015
Solef® 
6020
Halar® 
901
Halar® 
902
Tensile Strength 
at Yield
ASTM D 638 
23°C, 50 
mm/min
psi 
MPa
7,685-8,265 
53-57
7,685-8,265 
53-57
7,685-8,265 
53-57
4,300 
30
4,300-4,600 
30-32
Tensile Strength 
at Break
ASTM D 638 
23°C, 50 
mm/min
psi 
MPa
5,075-7,250 
35-50
5,075-7,250 
35-50
7,685-8,265 
25-50
7,800 
54
6,500-7,400 
45-51
Tensile 
Elongation 
at Yield
ASTM D 638 
23°C, 50 
mm/min
% 5-10 5-10 5-10 5 4-5
Tensile 
Elongation 
at Break
ASTM D 638 
23°C, 50 
mm/min
% 20-50 20-50
15-50
250 250-300
Tensile 
Modulus
ASTM D 638 
23°C, 1 
mm/min
kpsi 
MPa
348 
2,400
319 
2,200
239 
1,650
240(1) 
1,655(1)
265(1) 
1,827(1)
Flexion 
Maximum 
Load
ASTM D 790 
23°C, 2 
mm/min
psi 
MPa
11,165 
77
10,150 
70
9,570 
66
   
Flexural Strength ASTM D 638 
23°C, 2.5 
mm/min
psi 
MPa
     
6,800 
47
7,840 
54
Flexural 
Modulus
ASTM D 790 
23°C, 2 
mm/min
kpsi 
MPa
304 
2,100
290 
2,000
261 
1,800
245 
1,690
252(2) 
1,737(2)

(1)Measured at 50 mm/min 
(2)Measured at 2.5 mm/min

Thermal Properties

Thermal Properties

             
Property Test Method Units Solef® 
6010
Solef® 
1015
Solef® 
6020
Halar® 
901
Halar® 
902
Melting Point ASTM D 3418 °C 173 173 171 242 220-230
Heat of Fusion 
80°C to end of melt
ASTM D 3418 J/g 61 60 60 42 28
Glass Transition 
Temperature
DMTA °C -32 -30 -34 85 85
Thermal Stability TGA 
1% weight loss, N2
°C 375-400 375-400 375-400 405 405

 

Chemical Resistance & Solution Properties
Chemical Resistance & Solution Properties      
Property Solef® 
1015
Solef® 
6010
Solef® 
6020
Hydrolytic Stability + + +
Inorganic Acids + + +
Organic Acids 0 0 0
Alkali - - -
Aliphatic Hydrocarbons + + +
Aromatic Hydrocarbons + + +
Aliphatic Alcohols 0 0 0
Chlorinated Solvents + + +
Dipolar Aprotic Solvents 0 0 0
Chlorine(1) + + +
Ozone + + +
Sterilization by Gamma Ra(2) + + +
Sterilization by Steam + + +

(1)In absence of UV light 
(2)Maximum 40 MRad

KEY

"+": Polymer is resistant. Any increase in weight is less than 2% and any decrease in weight is less than 0.3%. The tensile yield strength is at least 85% of the initial value. 
"0": Use of polymer is limited. Response does not meet above criteria. For example, weight increase may be more than 2%. However, the polymer can be used if stress is low. 
"–": Polymer is not resistant. There is considerable alteration of the polymer, such as dissolution or chemical or physical degradation.

COMMENTS

1. In general Solef is very resistant to inorganic acids. In carboxylic acids, the acidity does not affect polymer performance, although swelling may occur. 
2. Dipolar aprotic solvents is a huge class of chemicals: some are solvents for PVDF (e.g. NMP) while some can be recommended for use in contact with PVDF at low temperatures (e.g. butyl acetate). 
3. Chlorine and ozone are able to generate free radicals that can attack PVDF. In conditions promoting the formation of radicals (e.g. UV light), care must be taken for the use of the polymer as chemical attack was observed. 
4. Gamma radiation could damage PVDF depending on the radiation dose. Good resistance was observed up to 20-40 MRad, but chemical attack may occur at higher doses.

Agency Approvals
Agency Approvals    
  Solef® PVDF Solef® PVDF
Bioprocessing    
USP Class VI 1008/0001 901 
902
Water Contact    
NSF 61 1008/0001 
1010/0001 
1010/0901 
6008/0001 
6010/0001 
6010/0000
901 
902
Food Contact    
FDA 1000 and 6000 series comply with 21 CFR 177.2510  
EC Directive 1000 and 6000 series comply with 2002/72/EC as subsequently amended  
NSF 51 1008/0001 
1010/0001 
1015/1001 
6008/0001 
6010/1001 
6020/1001
 

For further specifications and details regarding these agency approvals, please contact your local sales representative.

Algoflon® PTFE

Algoflon® PTFE (polytetrafluoroethylene) is an inert, non-toxic polymer with unique performance and processing attributes. It is available in fine coagulated white powders produced by dispersion polymerization, then processed by paste extrusion into a fibrous matrix with structural integrity.

Algoflon® DF powders are easily expanded after extrusion of the polymeric matrix without the use of soluble fillers, foaming agents or chemical additives. This process generates the physical creation of a huge number of small pores in the structure of an object made of PTFE, providing an exciting new level of performance properties.

Key Features

  • Outstanding chemical inertness
  • Exceptional heat resistance
  • Stable at pH levels from 1 to 14
  • Optimum dielectric and insulating properties
  • Extremely low coefficient of friction
  • Self-lubricating
  • Self-extinguishing
  • Outstanding anti-stick and release properties
  • Excellent weathering and aging characteristics

 

Typical Applications

  • Food and beverage processing
  • Gas and liquid microfiltration
  • Water treatment
  • Industrial filtration (e.g., filter bags, dust collectors)
  • Chemically inert fuel-cell membranes and separators
  • Garments made from lightweight, waterproof, breathable fabrics

 

Key Benefits

  • Suitable for high-temperature applications
  • Highly durable for long service life
  • Reduced fouling and clogging of equipment
  • Optimum resistance to aggressive cleaning programs
Typical Properties of Algoflon® DF Powders    
Property Test Method Units
Service Temperature   -260 to 260°C
Heat Resistance   Stable up to 260°C 
0.001% weight loss per hour at 350°C
Chemical Resistance ASTM D 543 High inertness
Solvent Resistance ASTM D 543 Insoluble up to 300°C
Water Absorption ASTM D 570 0.0%
Friction Coefficient ASTM D 1894 Static = 0.08 Dynamic = 0.06
Thermal Conductivity ASTM C 177 0.24 W/m°C
Flammability UL 94 V-0
Limiting Oxygen Index ASTM D 2683 >95%
Aging and Weatherability   Stable over 20 years of exposure

 

Aquivion® PFSA

Aquivion® PFSA (perfluoro sulfonic acid polymer) is a functionalized perfluoro-ionomer produced from vinyl fluoride monomer and sulfonyl fluoride vinyl ether. The polymer’s short, low molecular weight side chains make it unique among ionically conductive perfluoropolymers and impart unique performance advantages.

Typical Membrane Applications

  • Polymer electrolyte fuel cells (PEFC)
  • Electrolyzers
  • Gas humidification and pervaporation systems
  • Metal-ion recovery cells (Donnan dialysis)

 

Typical Dispersion Applications

  • Surface modifier for membrane filtration devices
  • Super acid catalyst systems
  • Electrochemical sensors
  • Cationic exchange resins
  • Electro-active polymers
  • Drug release devices

 

Key Features

  • Higher crystallinity for improved mechanical properties
  • Enhanced proton (and also Li+, Na+, K+) conductivity
  • Best-in-class ion conductivity, especially at high temperatures and low humidity
  • Very high functionality combined with excellent thermo-chemical resistance
  • Lower equivalent weight than competitive polymers
  • Shorter side chains than other ionically conductive perfluoropolymers
  • Unique combination of powerful functionality and excellent thermo-chemical resistance
Aquivion® PFSA Membranes and Dispersions        
  Equivalent 
Weight, 
g/mol SO3H
Typical 
Thickness, 
microns
Typical 
Concentration, 
% ionomer
Typical Solvents
Membrane        
Aquivion® E79 790 25-200    
Aquivion® E87 870 25-200    
Dispersion        
Aquivion® D83 830   6-20 Water 
1-Proponal 
2-Proponal

 

Sulfone Polymers for Membranes

Solvay’s sulfone polymers have been used to make membranes for over 25 years. They are soluble in conventional processing solvents and used to make hollow fiber, flat sheet and tubular membranes. Low cyclic dimer grades improve the stability of dope solutions, reduce filter clogging, and minimize manufacturing defects.

These high-temperature thermoplastics impart high fiber strength, toughness, rigidity and hydrolytic stability. This, combined with their excellent chemical resistance, enables membranes to tolerate a variety of feed streams and cleaning methods.

Excellent chemical resistance combined with hydrolytic stability, high strength and the ability to operate over a broad pH range makes these polymers the right choice for membranes used in demanding end-use environments.

Key Features

  • Excellent mechanical properties
  • Outstanding hydrolytic stability
  • Stable at pH levels from 2 to 13
  • Excellent biocompatibility
  • Easy to form MF and UF membranes
  • Low level of insolubles and extractibles
  • Sterilizable by steam, ethylene oxide and gamma radiation
  • Global agency approvals
Membrane Grades      
  Pellets Powders Typical Mol. Wt. [Mw (x103)]
Udel® PSU 
polysulfone
P-1700 LCD   67–72
  P-3500 LCD   75–81
Veradel® PESU 
polyether-sulfone
  3000MP 64–68
    3000P 62–64
    3100P 52–55
    3200P 45–47
Radel® PPSU 
polyphenylsulfone
R-5000   52–55
  R-5500   55–59

 

Sulfone Polymer Solutions

Udel® PSU

Udel® PSU (polysulfone) has been used successfully in a wide variety of membrane applications for over 25 years. It is the most cost-effective member of our sulfone polymers family and has become the industry standard in both reverse osmosis and hemodialysis membranes.

Typical Applications

  • Hemodialysis
  • RO/NF composite membrane support layer
  • Low pressure water filtration
  • Bioprocessing
  • Food and beverage
  • Gas separation
Key Features Key Benefits
  • Excellent mechanical properties
  • Outstanding hydrolytic stability
  • Stable at pH levels from 2 to 13
  • Easy to form MF and UF membranes
  • Soluble in conventional processing solvents
  • Low level of cyclic dimer and higher oligomers
  • Low level of insolubles and extractibles
  • Excellent biocompatibility
  • Sterilizable by steam, ethylene oxide and gamma radiation
  • Global agency approvals for drinking water, food contact and healthcare applications
  • Membranes with high flux and tailored selectivity
  • Improved stability of dope solutions
  • Minimize fiber breakage
  • Reduce equipment clogging and fouling
  • Minimal manufacturing defects

 

Veradel® PESU

Veradel® PESU (polyethersulfone) offers many of the same features as Udel polysulfone with the added benefit of high heat resistance. This high-performance polymer can be used to make hollow fiber, tubular and flat sheet types of MF and UF membranes. Powder grades are available for ease of dissolution in conventional processing solvents.

Typical Applications

  • Low pressure water filtration
  • Food and beverage processing
  • Industrial filtration
Key Features Key Benefits
  • Very high heat resistance
  • High mechanical strength and
  • creep resistance
  • Stable at pH levels from 2 to 13
  • Excellent hydrolytic stability
  • Good resistance to sodium hypochlorite
  • Global agency approvals
  • Suitable for higher temperature applications
  • Withstands aggressive cleaning programs
  • High membrane durability and long life

 

Radel® PPSU

Radel® PPSU (polyphenylsulfone) gives membranes an extra margin of toughness and chemical resistance. It offers the best chemical resistance of any sulfone polymer and can withstand over 1,000 cycles of steam sterilization.

Typical Applications

  • Bioprocessing
  • Food and beverage
  • Industrial
Physical Properties
Physical Properties            
Property Test Method Units Udel® 
P-1700
 
LCD,
 
P-1800
Udel® 
P-3500
 
LCD,
 
P-1835
Veradel® 
3000P,
 
3100P,
 
3200P
Radel® 
R-5000,
 
R-5500
Form     pellet, powder pellet, powder powder pellet
Density ASTM 
D 792
g/cm3 1.24 1.24 1.37 1.29
Molecular Weight, 
Mw
GPC g/mol (x103) 67-72 75-81 62-64, 52-55, 
45-47
52-55, 55-59
Polydispersity GPC   3.5 3.6 3.2-3.9 2.6
Solution Viscosity 
25% in DMAC 
40°C, 30 s-1
  cp 1,000- 
1,800
1,800- 
3,000
1,225-1,650, 
700-900, 
420-550
~2,200
Melt Flow Index ASTM D 1238 g/10 min 5.0-9.0(1) 2.0-4.9(1)   14-20, 12-17(2)
Water Absorption 
24 hours, 23°C
ASTM D 570 % 0.3 0.3 0.6 0.37

(1)Melt flow condition 343°C, 2.16 kg 
(2)Melt flow condition 365°C, 5.0 kg

Mechanical Properties
Mechanical Properties             
Property Test Method Units Udel® 
P-1700
 
LCD,
 
P-1800
Udel® 
P-3500
 
LCD,
 
P-1835
Veradel® 
3000P,
 
3100P,
 
3200P
Radel® 
R-5000,
 
R-5500
Tensile Strength 
at Yield
ASTM 
D 638
psi 
MPa
10,200 
70
10,200 
70
12,900 
90
10,100 
70
Tensile Modulus ASTM 
D 638
kpsi 
MPa
360 
2,480
360 
2,480
400 
2,800
340 
2,300
Tensile Elongation 
at Yield
ASTM 
D 638
% 5.7 5.7 6.5 7.2
Tensile Elongation 
at Break
ASTM 
D 638
% 50-100 50-100 30-60 60-120
Flexural Strength ASTM 
D 790
psi 
MPa
15,400 
106
15,400 
106
17,500 
121
15,200 
105
Flexural Modulus ASTM 
D 790
kpsi 
MPa
390 
2,690
390 
2,690
400 
2,800
350 
2,400

 

Thermal Properties
Thermal Properties            
Property Test Method Units Udel® 
P-1700 
LCD, 
P-1800
Udel® 
P-3500 
LCD, 
P-1835
Veradel® 
3000P, 
3100P, 
3200P
Radel® 
R-5000, 
R-5500
Glass Transition 
Temperature
ASTM 
D 3418
°C 190 190 220 220
Heat Deflection 
Temperature 
264 psi (1.8 MPa)
ASTM 
D 648
°C 174 174 204 207
Chemical Resistance
Chemical Resistance*        
Property Udel® 
P-1700
 
LCD,
 
P-1800
Udel® 
P-3500
 
LCD,
 
P-1835
Veradel® 
3000P,
 
3100P,
 
3200P
Radel® 
R-5000,
 
R-5500
Hydrolytic Stability + + + +
Acids + + + +
Alkali + + +  
Aliphatic Hydrocarbons 0 0 + +
Aromatic Hydrocarbons - - 0 0
Aliphatic Alcohols 0 0 + +
Chlorinated Hydrocarbons - - - 0
Dipolar Aprotic Solvents - - - -
Chlorine + + + +
Ozone + + + +
Sterilization by Gamma Rays + + + +
Sterilization by Steam + + + +

KEY

+ Polymer is resistant. Any increase in weight is less than 2% and any decrease in weight is less than 0.3%. The tensile yield strength is at least 85% of the initial value. 
0 Use of polymer is limited. Response does not meet above criteria. For example, weight increase may be more than 2%. However, the polymer can be used if stress is low. 
>– Polymer is not resistant. There is considerable alteration of the polymer, such as dissolution or chemical or physical degradation.

* Internal test method. Ratings give a general indication.

 

Chemical Resistance*      
Reagent Udel® PSU Veradel® PESU  Radel® PPSU 
n-Butane E E E
Benzene SA SA F
Toluene SA SA F
Ethanol G G E
Methyl Ethyl Ketone SA SA E
1,1,1-Trichloroethane SA SA F
Carbon Tetrachloride G G G
Hydrochloric Acid, 20% E E E
Sodium Hydroxide, 10% E E E

KEY

E Excellent. No change. 
G Good. Minor attack. No serious loss of properties. 
F Fair. Some attack. Some useful properties remain. 
SA Severe attack or rupture.

* Internal test method. Ratings give a general indication.

Solvents
Solvents*    
Udel® PSU Veradel® PESU Radel® PPSU
NMP NMP NMP
DMF DMF DMF
DMAC DMAC DMAC
Pyrridine Pyrridine Pyrridine
2-Pyrrolidone    
Chloroform    
Methylene Chloride    
Tetrahydrofuran    

Abbreviations

NMP N-Methyl-2-Pyrrolidone 
DMF N,N-Dimethyl Formamide 
DMAC N,N-Dimethylacetamide


*Dissolves 10% (wt/wt) cold

Agency Approvals
Agency Approvals for Sulfone Polymers    
  Udel® PSU Radel® PPSU
Food Contact    
FDA All base resins comply 
with 177.1655
All base resins comply with FCN #83
EC Directive All base resins comply with 90/128/EEC and its amendments All base resins comply with 90/128/EEC and its amendments
NSF 51 P-1700 NT 11 
P-3703 NT
R-5000
Water Contact    
NSF 61 
85° C
P-1700 NT 
P-1700 NT LCD 
P-3500 NT LCD 
P-3500 NT
R-5000 NT
WRc 
85° C
P-1700 NT 11 
P-3500 NT LCD
R-5000 NT
KTW 
90° C
P-1700 NT 11 
P-3500 NT 11
None

For further specifications and details regarding these agency approvals, please 
contact your local sales representative.

Going Further

Radel® PPSU delivers the highest performance of our sulfone polymers, offering better impact resistance and chemical resistance than polysulfone and polyetherimide.
Udel® PSU is a rigid, high-strength, semi-tough, transparent plastic that offers higher heat resistance and better hydrolytic stability than polycarbonate. PSU retains its mechanical properties when exposed to steam and other sterilization techniques.
Veradel® PESU combines good chemical resistance with a high heat deflection temperature of 204°C (399°F), making it a good fit for food service applications. Inherent flame-retardant properties make it well-suited for electronic components and testing devices.