Ethylene Propylene Diene Monomer (EPDM)
| Formula: | (C₃H₆·C₂H₄·C₅H₈)ₙ |
| CAS Number: | 25038-36-2 |
| EC Number (EINECS): | 500-039-8 |
| HS Code: | 40027000 |
| UN Number: | Not regulated as dangerous goods |
| IUPAC Name: | Ethylene-Propylene-Diene Terpolymer |
| Also Known As: | EPDM Rubber; Ethylene-Propylene Rubber; EPM (if without diene) |
| Molecular Weight, g/mol: | Variable (polymer) |
Typical Specifications
| Appearance: | Solid rubber, black or off-white |
| Odor: | Mild, rubber-like |
| Grades Available: | General Purpose, High Mooney, Oil-Extended, Specialty Grades |
| Packaging: | 25kg bales, wrapped in polyethylene film |
Applications / Uses
Primary Applications
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Automotive weather seals, hoses, belts, and gaskets
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Roofing membranes and waterproofing systems
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Electrical insulation and cable sheathing
Secondary Applications
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Seals and O-rings in industrial machinery
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Pond liners, geomembranes, and construction sheets
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Modified asphalt and sealants
End Industries Served: Automotive, Construction, Electrical, Industrial Machinery, Roofing, Water Infrastructure, Energy
Safety & Handling Information
Hazard Class (GHS): Not classified as hazardous (polymer form); dust or fumes may cause irritation
Hazard Statements (H-Codes):
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H335: May cause respiratory irritation (dust during processing)
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H351: Suspected of causing cancer (for some carbon black–filled compounds)
Precautionary Statements (P-Codes):
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P261: Avoid breathing dust/fume from processing
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P280: Wear protective gloves/eye protection
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P273: Avoid release to the environment
Storage Conditions
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Store in cool, dry, ventilated place
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Avoid direct sunlight and heat sources
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Keep bales wrapped to prevent contamination and sticking
Transport Information
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ADR/RID: Not classified as dangerous goods
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IMDG: Not classified as dangerous goods
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IATA: Not classified as dangerous goods