Appendix D: Fluid Compatibility Tables
fct-4 09/30/2010
LV1 User Manual
D-2
Polyetheretherketone, one of the new high-strength engineering plastics. Has excellent chemical
resistance and structural properties. Very high temperature capability. Used for bearings, gaskets,
and back-up rings.
PEEK:
Has broadest chemical resistance of all plastic materials and outstanding temperature capability.
Limited strength and poor shape retention make PTFE a poor choice for sealing and load bearing
applications unless combined with other fillers such as glass fibers, carbon graphite, or
molybdenum disulfide.
PTFE: (Trade name, Teflon):
R = Recommended
M = Marginal
U = Unsatisfactory
X = Insufficient Data
L = Likely to be Compatible
Fluid
Nitrile
EPDM Neoprene Fluoroelastomer UHMWPE
PEEK
PTFE
Acetaldehyde
U
R
U
U
X
L
R
Acetamide
R
R
R
U
X
X
R
Acetic Acid
M
R
R
U
R
R
R
Acetone
U
R
M
U
R
R
R
Acetophenone
U
R
U
U
X
L
R
Acetylene
R
R
R
R
L
R
R
Acrylonitrile
U
U
U
U
X
R
R
Ammonia
R
R
R
U
R
R
R
Ammonium Hydroxide
R
R
R
R
L
R
R
Amyl Acetate
U
M
U
U
R
L
R
Anderol L-774
M
U
U
R
L
L
X
Antifreeze
R
R
R
R
R
R
R
Aniline
U
R
U
M
R
R
R
Ansul Ether
M
M
U
U
X
L
L
Aroclors
M
R
U
R
X
L
L
Askarel
R
U
U
R
X
L
R
Asphalt
M
U
M
R
L
R
R