• Economical
• Good resistance to many acids and bases
• Not good for solvents
• Brittle at low temperatures
• Temperature to 225°F (110°C)
Common Industries
Common Applications
Water Treatment
Chemical Processing
Food and Beverage
Steel (pickling)
Power Generation
<30% HCl
<90% H2SO4
Sea Water / Brine
NaOH
Fruit Juices
Ultrapure Water
MEK
Diethanolamine
PVDF (Kynar®)
• Excellent resistance to halogens and high strength acids
• Avoid pH > (11)
• Tough
• Abrasion Resistant
• High Thermal Expansion Coefficient
• Temperature to 275°F (135°C)
Common Industries
Common Applications
Pulp & Paper
Chemical Processing
Electronic
ClO2
<90% H2SO4
Methyl Chloride
Chlorine
Bromine
90-98% H2SO4
30-35% HCl
PTFE (TEFLON®)
• Virtually inert
• Most versatile liner
• Widest temperature range
• Creeps under relatively low stress
• Not melt processable
• Temperature to 450°F (230°C)
• Cryogenic up to 450°F (235°C)
Common Industries
Common Applications
Chemical Processing
Pharmaceutical
MECl
Aniline
Epichlorohydrin
Nitric Acid
Oleum
Nitrobenzene
Ethylene Oxide
PFA (TEFLON®)
• Same performance characteristics as PTFE
• Melt processable
• Complex shapes
• Weldable
• Widely used in Electronics industry
• Expensive
• Cryogenic up to 450°F (235°C)
Common Industries
Common Applications
Chemical Processing
Pharmaceutical
MECl
Aniline
Epichlorohydrin
Nitric Acid
Oleum
Nitrobenzene
Ethylene Oxide
PTFE is manufactured by DuPont under the trade name
TEFLON®. TEFLON® is a trademark of DuPont. Only DuPont makes TEFLON®.
Tefzel® is a registered trademark of DuPont.
PVDF copolymer is manufactured by Elf Atochem under the trade name KynarFlex®.
KynarFlex is a registered trademark of Elf Atochem.
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