O-Rings

Distributor of  Kalrez

The Seal to Trust for Tough Sealing Applications

For demanding sealing applications when customers require the very best, Kalrez® perfluoroelastomer parts are the elastomer seals of choice. Supplied in standard O-rings or custom shapes, Kalrez® resists over 1,800 different chemicals while offering the high temperature stability of PTFE (327°C). Advanced properties help maintain seal integrity, reduce maintenance and operating costs and improve safety. Kalrez® parts provide reliable, long-term service with a wide range of aggressive industrial and electronic grade chemicals. It is used in highly aggressive chemical processing, semiconductor wafer processing, pharmaceutical, oil and gas recovery, aerospace and petroleum applications. Production facilities for Kalrez® are ISO and AS 9000 registered. Copyright© 1999-2003 DuPont Dow Elastomers L.L.C. All rights reserved
 

O-Ring Material Properties/Applications

Material

Properties

Applications
Nitrile
(Buna-n)		 Good resistance to petroleum hydrocarbons and fuels.
Widely used with most oils, hydraulic fluids, alcohol.
Many compound variations for specific applications.
Basic temperature range:  -40 F to +250 F*		 Petroleum oil seals
Hydraulic fluid seals
Water / Greases
Transmission fluid seals
Fluorocarbon
(Viton)		 Excellent high temperature and chemical resistance.
Excellent mechanical and physical properties.
Low compression set and low gas permeability.
Basic temperature range:  -20 F to +400 F*		 Vacuum seals
Acids / Fuels
High heat
Chemicals / Solvents

Perfluoroelastomer
Kalrez logo

 High temperature and chemical resistance.
Excellent resistance to chemicals.
Excellent outgassing performance in vacuums.
Low compression set.
Various compounds for specific applications.
Basic temperature range: -10 F to +600 F*		 A wide range of aggressive industrial and electronic grade chemicals. It is used in highly aggressive chemical processing, semiconductor wafer processing, pharmaceutical, oil and gas recovery, aerospace and petroleum applications.
Silicone Broad temperature range.  Odorless / non-toxic.
Resistance to sun and ozone.  Fungus resistant.
Poor tear and abrasion strength.  Poor resistance to oils.
Basic temperature range:  -80 F to +400 F*		 Dry heat
Alcohol / Oxygen
Electrical / Medical
Low temperature
Ethylene Propylene
(EPR / EPDM)		 Resistance to sunlight, weathering and ozone.
Poor resistance to petroleum oils and fuel.
Good heat and compression set resistance.
Basic temperature range:  -65 F to +250 F*		 Steam / Hot water
Hydraulic / Skydrol
Auto brake systems
Alcohol / Greases
Chloroprene
(Neoprene)		 Good resistance to petroleum oils.
Low compression set and good tear and abrasion strength.
Good resistance to weathering, sunlight and ozone.
Basic temperature range:  -40 F to +225 F*		 Refrigeration seals
Freon / Air conditioning
Motor mounts
Engine coolants
Fluorosilicone Wide range of fluid and chemical resistance.
Large temperature range.
A mix of Fluorocarbon (Viton) and Silicone.
Basic temperature range:  -80 F to +350 F*		 Aircraft fuel systems
Jet fuel / Gasoline
Petroleum oils
Synthetic jet oil
Teflon Excellent temperature range.
Various chemical and fuel resistance.
Low coefficient of friction.  Non-elastic.
Basic temperature range:  -250 F to +450 F*		 High / Low temperatures
Chemicals / Fuels
Teflon Encapsulation
Teflon coating
 

 

Other brands and elastomers are available, please call us at 1-800-732-5669