EPDM (Ethylene Propylene Diene Rubber) vs PPSU (Polyphenylsulfone): 0% composition overlap. Significantly different materials serving different application areas.
EPDM (Ethylene Propylene Diene Rubber) vs PPSU (Polyphenylsulfone)
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.
PPSU (Polyphenylsulfone)
Polyphenylsulfone — highest-performance sulfone polymer. Better impact and chemical resistance than PSU and PEI. Withstands >1000 steam autoclave cycles at 134°C without property loss. Tg 220°C. Transparent amber, colorable. Inherently flame-retardant (V-0). FDA/USP Class VI/ISO 10993 compliant. Trade name: Radel (Solvay/Syensqo), Ultrason P (BASF). Used for reusable medical instrument trays, surgical instrument handles, dental tools, aircraft interior panels, and hot-water plumbing fittings.
| EPDM (Ethylene Propylene Diene Rubber) | PPSU (Polyphenylsulfone) | |
|---|---|---|
| Material Number | — | — |
| Category | Polymers | Polymers |
| Standard | ISO 37 | ISO 527-1 |
Mechanical properties
| Property | EPDM (Ethylene Propylene Diene Rubber) | PPSU (Polyphenylsulfone) | Unit |
|---|---|---|---|
| tensile_strength | 7–21 | 55–75 | MPa |
| elongation | 100–700 | 30–60 | % |
| hardness_shore_a | 30–90 | — | Shore A |
Compatibility Assessment
EPDM (Ethylene Propylene Diene Rubber) and PPSU (Polyphenylsulfone) 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 PPSU (Polyphenylsulfone)?
EPDM (Ethylene Propylene Diene Rubber) and PPSU (Polyphenylsulfone) have a 0% composition overlap. They are generally not directly interchangeable.
Can I replace EPDM (Ethylene Propylene Diene Rubber) with PPSU (Polyphenylsulfone)?
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 PPSU (Polyphenylsulfone)?
The main differences are in the following elements: overall alloying content. EPDM (Ethylene Propylene Diene Rubber) is a Polymers grade, while PPSU (Polyphenylsulfone) is a Polymers grade.
View full data for each material:
Data provided for reference only. Always verify against the applicable specification for critical applications.
All data is for reference only. Equivalents indicate similarity, not identity. Always verify against the applicable specification for safety-critical applications. materialref.com accepts no liability for decisions based on this data.