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This page contains a guide to selecting O-ring materials based on chemical compatibility requirements.
The chemical compatibility data can be presented in one of two ways. First, you can select a specific O-ring material to view its compatible chemicals. Or second, you can select a specific chemical to view all its compatible O-ring materials. Chemical compatibilities are rated and displayed according to the following scale: |
Key to O-Ring Material Compatibility Ratings
| (4) | Good, both for static and dynamic seals |
| (3) | Fair, usually OK for static seals |
| (2) | Sometimes OK for static seals; not OK for dynamic seals |
| (1) | Poor |
| (0) | No Data |
O-Ring Compatibilities
| Order by Rating | |
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O-Ring Materials Compatible with Propane (select a material to show its compatible chemicals) |
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| Aflas (0) | Buna-N (Nitrile) (4) | Butyl (1) |
| Chemraz (4) | Epichlorohydrin (4) | Ethylene-Propylene (1) |
| Fluorocarbon (4) | Fluorosilicone (3) | Hypalon (0) |
| Kalrez (4) | Natural Rubber (1) | Neoprene (2) |
| Nitrile, Hydrogenated (4) | Polyacrylate (0) | Polysulfide (4) |
| Polyurethane, Cast (0) | Polyurethane, Millable (0) | Silicone (1) |
| Styrene Butadiene (1) | Teflon, Virgin (4) | Vamac (4) |
