EPDM (Ethylene Propylene Diene Rubber) vs POM-C (Acetal Copolymer): 0% composition overlap. Significantly different materials serving different application areas.
EPDM (Ethylene Propylene Diene Rubber) vs POM-C (Acetal Copolymer)
Side-by-side chemical composition and mechanical property comparison.
Overview
EPDM (Ethylene Propylene Diene Rubber)
Ethylene propylene diene monomer rubber — THE outdoor/weather elastomer. Saturated backbone gives outstanding ozone, UV, and weathering resistance. Excellent resistance to steam, hot water, and polar solvents. NOT resistant to oils/fuels (opposite of NBR). Good electrical insulation. ρ 0.85-1.3 (lightest common rubber). Used for automotive door/window seals, roofing membranes, radiator hoses, HVAC gaskets, and pond liners.
POM-C (Acetal Copolymer)
Polyoxymethylene Copolymer — the precision engineering plastic. Exceptional dimensional stability, low moisture absorption (0.2%), low friction coefficient, and excellent machinability. More hydrolysis-resistant and chemically stable than POM-H (homopolymer). No centerline porosity in stock shapes. Trade names include Hostaform (Celanese), Ertacetal C (MCAM), Duracon (Polyplastics). Used for gears, bearings, valve bodies, pump parts, electrical insulators, and food/medical contact parts.
| EPDM (Ethylene Propylene Diene Rubber) | POM-C (Acetal Copolymer) | |
|---|---|---|
| Material Number | — | — |
| Category | Polymers | Polymers |
| Standard | ISO 37 | ISO 10350 |
Mechanical properties
| Property | EPDM (Ethylene Propylene Diene Rubber) | POM-C (Acetal Copolymer) | Unit |
|---|---|---|---|
| tensile_strength | 7–21 | 60–67 | MPa |
| elongation | 100–700 | 25–45 | % |
| hardness_shore_a | 30–90 | — | Shore A |
Compatibility Assessment
EPDM (Ethylene Propylene Diene Rubber) and POM-C (Acetal Copolymer) have significantly different compositions (0% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is EPDM (Ethylene Propylene Diene Rubber) the same as POM-C (Acetal Copolymer)?
EPDM (Ethylene Propylene Diene Rubber) and POM-C (Acetal Copolymer) have a 0% composition overlap. They are generally not directly interchangeable.
Can I replace EPDM (Ethylene Propylene Diene Rubber) with POM-C (Acetal Copolymer)?
Generally not recommended. The compositions differ significantly (0% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between EPDM (Ethylene Propylene Diene Rubber) and POM-C (Acetal Copolymer)?
The main differences are in the following elements: overall alloying content. EPDM (Ethylene Propylene Diene Rubber) is a Polymers grade, while POM-C (Acetal Copolymer) is a Polymers grade.
Related Comparisons
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Data provided for reference only. Always verify against the applicable specification for critical applications.
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