Document GKOeyMG55QyVqGX1qob2rOk8m
Fluoropolymer PTFE TFM-PTFE PVDF PFA Fluoroelastomer FFKM (Kalrez)
FKM (Viton)
Alternative Materials Polymer PE PP PA PVC
PEEK PPS Elastomer EPDM
Comparison of Fluoropolymers /Fluoroelastomers with alternative materials
longterm neutral substances
thermal stability shortterm neutral substances
longterm agressive substances
NaOH 50% < 60C
NaOH 50% > 60C
HCl < 60C
chemical stability
HCl
H2SO4
> 60C
< 60C
H2SO4 > 60C
HNO3 < 60C
HNO3 > 60C
-20C - 200C -20C - 260C -20C - 150C
-20C - 200C -20C - 260C -20C - 150C
-20C - 100C
O
O up to 60%
O up to 70%
-20C - 200C -20C - 260C -20C - 150C
-10C - 260C -10C - 320C
O only low O only low
-10C - 150C -10C - 200C
O
O
O
O
O
concentration concentration
0C - 90C 0C - 110C 0C - 80C
O up to 60%
O up to 30%
0C - 90C 0C - 110C 0C - 80C
O up to 5%
O up to 60%
0C - 100C
0C - 60C O up to 40C
O up to 40C
0C - 60C 0C - 60C 0C - 40C
O up to 40C
O up to 60%
O up to 50%
O only low O only low O only low O only low
0C - 250C 0C - 300C
O
concentration concentration concentration concentration
0C - 200C 0C - 260C
O
O
O
O
-30C - 130C
O
O
O
O
O
Symbols Meaning Accept O with limitations Not fulfilled