Chemical Compatibility

Calcium Hydroxide vs 13 elastomers

Best choices for Calcium Hydroxide: NBR, HNBR, FKM, FFKM, EPDM, VMQ, FVMQ, CR, NR, SBR, IIR, FEPM. Full ratings below, A is continuous-service suitable, D is not recommended.

Calcium Hydroxide
NBR, HNBR, FKMBest choices
AUAvoid
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 PropyleneAExcellent, continuous service
VMQ SiliconeAExcellent, continuous service
FVMQ FluorosiliconeAExcellent, continuous service
CR Neoprene (Chloroprene)AExcellent, continuous service
NR Natural RubberAExcellent, continuous service
SBR Styrene ButadieneAExcellent, continuous service
IIR ButylAExcellent, continuous service
AU PolyurethaneDNot recommended
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 C →

Sealing against Calcium Hydroxide?

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