Chemical Compatibility

Brake Fluid Dot3, Glycol Type vs 13 elastomers

Best choices for Brake Fluid Dot3, Glycol Type: EPDM, VMQ, FVMQ, NR, SBR, IIR. Full ratings below, A is continuous-service suitable, D is not recommended.

Brake Fluid Dot3, Glycol Type
EPDM, VMQ, FVMQBest choices
NBR, FKM, FFKMAvoid
ElastomerRatingMeaning
NBR Nitrile (Buna-N)DNot recommended
HNBR Hydrogenated NitrileCConditional, test first
FKM Fluorocarbon (Viton)DNot recommended
FFKM PerfluoroelastomerDNot recommended
EPDM Ethylene PropyleneAExcellent, continuous service
VMQ SiliconeAExcellent, continuous service
FVMQ FluorosiliconeAExcellent, continuous service
CR Neoprene (Chloroprene)BGood, minor effect
NR Natural RubberAExcellent, continuous service
SBR Styrene ButadieneAExcellent, continuous service
IIR ButylAExcellent, continuous service
AU PolyurethaneDNot recommended
FEPM Aflas (TFE/P)BGood, minor effect

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 B →

Sealing against Brake Fluid Dot3, Glycol Type?

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