Lye: KOH Potassium Hydroxide

17-4 PH (Stainless)N/A
3% NI / IronN/A
ABS PlasticA - Excellent
Acetal (Delrin ®)A - Excellent
Alloy 20N/A
AluminumD - Poor
Aluminum BronzeN/A
BrassD - Poor
BronzeD - Poor
Buna N (Nitrile)B¹ - Good
Carbon GraphiteC - Fair
Carbon SteelD - Poor
Carpenter 20B - Good
Cast IronB² - Good
Ceramic AI203D - Poor
Ceramic MagnetA - Excellent
ChemRaz® (FFKM)C - Fair
CopperB - Good
CPVCA - Excellent
Ductile IronN/A
EpoxyA - Excellent
Ethylene Propylene (EPDM)A² - Excellent
Flourocarbon (FKM) Viton®B - Good
GraphiteN/A
Gray IronN/A
Hastelloy CB¹ - Good
Hytrel® (TPE)D - Poor
Kalrez® (Perfluoroelastomer)A - Excellent
Kel-F® (PCTFE)B - Good
Kynar® (PVDF)A - Excellent
LDPEA - Excellent
MonelN/A
Natural RubberB - Good
NeopreneB - Good
NI Plated DuctileN/A
NORYL® (PPO)A¹ - Excellent
NylonB¹ - Good
Polycarbonate (PC)A¹ - Excellent
Polyetherether Ketone (PEEK)B - Good
Polypropylene (PP)A - Excellent
Polysulfone (PSU)D - Poor
Polyurethane (PUR)N/A
PPS (Ryton®)A - Excellent
PTFE (Teflon®)A - Excellent
PVCB - Good
SiliconeC - Fair
Silicone BronzeN/A
Stainless Steel - 304B - Good
Stainless Steel - 316A¹ - Excellent
Stainless Steel - 400N/A
Stellite®N/A
TitaniumD - Poor
Tygon®B - Good