Chemical Compatibility
Brake Fluid, Wagner 21b vs 13 elastomers
Best choices for Brake Fluid, Wagner 21b: EPDM, SBR, FEPM. Full ratings below, A is continuous-service suitable, D is not recommended.
Brake Fluid, Wagner 21b
EPDM, SBR, FEPMBest choices
FKM, FFKM, FVMQAvoid
| Elastomer | Rating | Meaning |
|---|---|---|
| NBR Nitrile (Buna-N) | C | Conditional, test first |
| HNBR Hydrogenated Nitrile | C | Conditional, test first |
| FKM Fluorocarbon (Viton) | D | Not recommended |
| FFKM Perfluoroelastomer | D | Not recommended |
| EPDM Ethylene Propylene | A | Excellent, continuous service |
| VMQ Silicone | C | Conditional, test first |
| FVMQ Fluorosilicone | D | Not recommended |
| CR Neoprene (Chloroprene) | B | Good, minor effect |
| NR Natural Rubber | B | Good, minor effect |
| SBR Styrene Butadiene | A | Excellent, continuous service |
| IIR Butyl | B | Good, minor effect |
| AU Polyurethane | D | Not recommended |
| FEPM Aflas (TFE/P) | A | Excellent, 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 B →
Sealing against Brake Fluid, Wagner 21b?
Tell us concentration, temperature and duty, we will recommend and sample the compound.