CELSIUS 90 100 110 120 130 145 150 160 170 180 190 200 210 220 235 245 250 260 270
POLYPROPYLENE
Excellent resistance
to acids and alkalis
MAX
SURGE
100
HOMOPOLYMER ACRYLIC
Good resistance to acids and alkalis. Sensitive to zinc salts.
Use UCF with acid gas stream or moisture content > 5%
MAX
SURGE
135
POLYESTER
Resistance to acids - fair. Resistance to alkalis - poor.
Sensitive to acidic environments
MAX
SURGE
150
POLYPHENYLSULPHIDE
Excellent resistance to acids and alkalis. Sensitive to oxygen
content (must be less than 15% by vol), oxidising agents
MAX
SURGE
190
META-ARAMID
Resistance to acids - good. Resistance to alkalis - good.
Use UCF with acid gas and moisture content > 5%
MAX
SURGE
220
POLYIMIDE
Resistance to acids - good. Resistance to alkalis - moderate. Sensitive to strong acids
at high temperature
MAX
SURGE
245
PTFE
Excellent resistance to acids and alkalis. Sensitive to alkaline metals and fluorine gas

MAX
SURGE
270
Temperatures quoted above are maximums under dry conditions