Chemical Compatibility
Desmodur vs 13 elastomers
Full elastomer ratings for Desmodur below.
Desmodur
—Best choices
HNBR, EPDM, VMQAvoid
| Elastomer | Rating | Meaning |
|---|---|---|
| NBR Nitrile (Buna-N) | X | |
| HNBR Hydrogenated Nitrile | D | Not recommended |
| FKM Fluorocarbon (Viton) | X | |
| FFKM Perfluoroelastomer | X | |
| EPDM Ethylene Propylene | D | Not recommended |
| VMQ Silicone | D | Not recommended |
| FVMQ Fluorosilicone | X | |
| CR Neoprene (Chloroprene) | D | Not recommended |
| NR Natural Rubber | B | Good, minor effect |
| SBR Styrene Butadiene | D | Not recommended |
| IIR Butyl | D | Not recommended |
| AU Polyurethane | B | Good, minor effect |
| FEPM Aflas (TFE/P) | X |
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 D →
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