EPDM (Ethylene Propylene Diene Rubber) vs TPE-S (SEBS-based): 0% composition overlap. Significantly different materials serving different application areas.
EPDM (Ethylene Propylene Diene Rubber) vs TPE-S (SEBS-based)
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.
TPE-S (SEBS-based)
Styrene-ethylene-butylene-styrene (SEBS) based thermoplastic elastomer — the largest and most versatile TPE family. Hardness adjustable from Shore 0A to 100A through compounding with PP, oil, and fillers. Excellent UV/ozone/aging resistance (superior to SBS). Soft, comfortable touch. Non-toxic, meets EN 71 + REACH + FDA. Bonds well to PP and PE in 2K injection molding. Used for soft-touch grips, seals, gaskets, overmolded handles, baby products, medical tubing, cable jacketing, and shoe soles. Not oil-resistant.
| EPDM (Ethylene Propylene Diene Rubber) | TPE-S (SEBS-based) | |
|---|---|---|
| Material Number | — | — |
| Category | Polymers | Polymers |
| Standard | ISO 37 | ISO 18064 |
Chemical composition (wt%) — Pro
| Element | EPDM (Ethylene Propylene Diene Rubber) | TPE-S (SEBS-based) | Overlap |
|---|---|---|---|
| Ethylene | 45–75% | — | — |
| Propylene | 25–55% | — | — |
| Diene (ENB/DCPD) | 2–10% | — | — |
| SEBS/SBS Base Polymer | — | 30–70% | — |
| Polypropylene/Polyolefin | |||
| Mineral Oil (Plasticizer) |
Sign up free and get 3 full comparisons immediately.
Sign up free — 3 comparisons/day freeMechanical properties — Pro
| Property | EPDM (Ethylene Propylene Diene Rubber) | TPE-S (SEBS-based) | Unit |
|---|---|---|---|
| Tensile Strength | 7–21 | 3–7 | MPa |
| Elongation | 100–700 | — | % |
| hardness_shore_a | 30–90 | 35–45 | Shore A |
| Density | |||
| continuous_service_temp | |||
| Elongation at Break | |||
| service_temp_min | |||
| service_temp_max |
Sign up free and get 3 full comparisons immediately.
Sign up free — 3 comparisons/day freeCompatibility Assessment
EPDM (Ethylene Propylene Diene Rubber) and TPE-S (SEBS-based) 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 TPE-S (SEBS-based)?
EPDM (Ethylene Propylene Diene Rubber) and TPE-S (SEBS-based) have a 0% composition overlap. They are generally not directly interchangeable.
Can I replace EPDM (Ethylene Propylene Diene Rubber) with TPE-S (SEBS-based)?
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 TPE-S (SEBS-based)?
The main differences are in the following elements: overall alloying content. EPDM (Ethylene Propylene Diene Rubber) is a Polymers grade, while TPE-S (SEBS-based) 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.