Chemical Compatibility

Malic Acid vs 13 elastomers

Best choices for Malic Acid: NBR, HNBR, FKM, FFKM, FVMQ, FEPM. Full ratings below, A is continuous-service suitable, D is not recommended.

Malic Acid
NBR, HNBR, FKMBest choices
EPDM, IIRAvoid
ElastomerRatingMeaning
NBR Nitrile (Buna-N)AExcellent, continuous service
HNBR Hydrogenated NitrileAExcellent, continuous service
FKM Fluorocarbon (Viton)AExcellent, continuous service
FFKM PerfluoroelastomerAExcellent, continuous service
EPDM Ethylene PropyleneDNot recommended
VMQ SiliconeBGood, minor effect
FVMQ FluorosiliconeAExcellent, continuous service
CR Neoprene (Chloroprene)BGood, minor effect
NR Natural RubberCConditional, test first
SBR Styrene ButadieneBGood, minor effect
IIR ButylDNot recommended
AU PolyurethaneX
FEPM Aflas (TFE/P)AExcellent, continuous service

Room-temperature, neat chemical unless stated. Concentration and temperature shift ratings, validate with our lab.

Ratings are for the neat chemical at room temperature unless stated; concentration and temperature change everything. Validate with our lab before committing a compound. Search another chemical → More chemicals starting with M →

Sealing against Malic Acid?

Tell us concentration, temperature and duty, we will recommend and sample the compound.