Tannic Acid

17-4 PH (Stainless)N/A
3% NI / IronN/A
ABS PlasticN/A
Acetal (Delrin ®)B - Good
Alloy 20N/A
AluminumC - Fair
Aluminum BronzeN/A
BrassB - Good
BronzeB - Good
Buna N (Nitrile)A - Excellent
Carbon GraphiteA - Excellent
Carbon SteelD - Poor
Carpenter 20A - Excellent
Cast IronC - Fair
Ceramic AI203A - Excellent
Ceramic MagnetA - Excellent
ChemRaz® (FFKM)A - Excellent
CopperA - Excellent
CPVCA¹ - Excellent
Ductile IronN/A
EpoxyA - Excellent
Ethylene Propylene (EPDM)A - Excellent
Flourocarbon (FKM) Viton®B - Good
GraphiteN/A
Gray IronN/A
Hastelloy CB¹ - Good
Hytrel® (TPE)A - Excellent
Kalrez® (Perfluoroelastomer)A - Excellent
Kel-F® (PCTFE)A - Excellent
Kynar® (PVDF)B - Good
LDPEB² - Good
MonelN/A
Natural RubberA - Excellent
NeopreneA - Excellent
NI Plated DuctileN/A
NORYL® (PPO)A² - Excellent
NylonA - Excellent
Polycarbonate (PC)D - Poor
Polyetherether Ketone (PEEK)N/A
Polypropylene (PP)A - Excellent
Polysulfone (PSU)A - Excellent
Polyurethane (PUR)N/A
PPS (Ryton®)A - Excellent
PTFE (Teflon®)A - Excellent
PVCA¹ - Excellent
SiliconeB - Good
Silicone BronzeN/A
Stainless Steel - 304B¹ - Good
Stainless Steel - 316A - Excellent
Stainless Steel - 400N/A
Stellite®N/A
TitaniumA - Excellent
Tygon®B - Good