描述
Santoprene 101-73 is a black, versatile thermoplastic vulcanizate (TPV) from Celanese designed for general-purpose extrusion and molding applications requiring a firmer elastomeric response than softer Santoprene 101-series grades.
Celanese positions the 101 series among its core general-purpose TPV materials with the highest level of elastomeric performance in the Santoprene portfolio.
The material combines the elastic behavior of vulcanized rubber with conventional thermoplastic processing. It can be processed on standard thermoplastic equipment and does not require a separate curing step during normal molding or extrusion.
For Santoprene 101-73, Celanese specifically highlights excellent flex-fatigue resistance and excellent ozone resistance.
These two characteristics make the grade especially useful in components that must withstand repeated bending, deformation and environmental exposure over a long service life.
Typical uses include seals, gaskets, diaphragms, bellows, boots, flexible tubes, air-management components, appliance parts, electrical components, automotive under-hood parts and outdoor elastomeric profiles.
The grade has a Shore A hardness of approximately 78, making it significantly firmer than Santoprene 101-55 and 101-64 while still maintaining very high elongation.
Current Celanese grade data lists approximately 478% elongation at break, 7.98 MPa tensile stress at break, 3.44 MPa tensile stress at 100% elongation and approximately 25 kN/m tear strength.
This property balance is useful when a designer needs more mechanical support, higher tensile strength and improved tear resistance without moving into a rigid thermoplastic.
Low-temperature behavior is also strong. The current brittleness temperature is approximately -60°C, supporting use in cold-weather automotive, outdoor and industrial applications.
Compression-set performance is approximately 27% at 70°C for 24 hours and approximately 41% at 125°C for 70 hours.
The material also offers documented temperature capability. Current Celanese data lists a continuous upper temperature resistance of 135°C for 1,000 hours according to SAE J2236.
UL Relative Thermal Index values are approximately 90°C for electrical service at 1.5 and 3.0 mm, 90°C for mechanical-strength service at 1.5 mm, and approximately 95°C at 3.0 mm.
The grade is UL recognized under Celanese file references QMFZ2.E80017 and QMFZ8.E80017.
It also carries outdoor suitability f1 under UL 746C, plus detergent-resistance ratings of f3 under UL 749 and f4 under UL 2157.
Current Celanese-derived automotive data also lists multiple OEM specification references for this grade, including BMW GS93042, Ford WSD-M2D380-A1, General Motors GMW15813 Type 6, Hyundai MS220-05 Type C, Hyundai MS220-31 Type A2, MAN M 3236 A7, Mercedes-Benz DBL 5562, Stellantis references and Volkswagen Group VW 50123.
This broad approval history makes Santoprene 101-73 particularly relevant to automotive Tier 1 and component suppliers evaluating a proven black TPV platform.
The material is polyolefin based and Celanese states that Santoprene TPV can be recyclable within the manufacturing stream.
For more TPV products, visit our TPV Thermoplastic Vulcanizates Product Category →.
For the current Celanese TPV portfolio, see the Official Celanese Santoprene & Geolast Product Finder →.
Key Features of Santoprene 101-73
| Feature | Engineering Benefit |
|---|---|
| Shore A 78 | Firmer elastomeric response for seals, boots, gaskets and technical parts |
| Excellent Flex-Fatigue Resistance | Supports repeated movement and cyclic deformation |
| Excellent Ozone Resistance | Suitable for outdoor and automotive service |
| -60°C Brittleness Temperature | Supports low-temperature use |
| 478% Elongation at Break | Maintains high deformability despite higher hardness |
| 7.98 MPa Stress at Break | Higher mechanical strength than softer 101-series grades |
| 25 kN/m Tear Strength | Good resistance to edge tearing and damage |
| Low Compression Set | Helps maintain sealing force after prolonged compression |
| Good Chemical Resistance | Useful for many automotive and industrial environments |
| UL Recognized | Current documentation references E80017 |
| Outdoor Suitability f1 | Supports weather-exposed applications |
| Injection Molding + Extrusion | Broad thermoplastic processing flexibility |
| Blow Molding / Thermoforming | Adds options for hollow and shaped elastomeric parts |
| Automotive OEM References | Supported by multiple global vehicle specifications |
The strongest reason to select Santoprene 101-73 is its balance of higher hardness, high elongation, tear resistance, ozone resistance and proven automotive use.
Typical Applications for Santoprene 101-73
Santoprene 101-73 is suitable for a wide range of general-purpose elastomeric applications.
| Application Area | Typical Use |
|---|---|
| Automotive Seals & Gaskets | Flexible sealing components requiring higher support |
| Under-Hood Components | Elastomeric parts exposed to heat, vibration and ozone |
| Air-Management Ducts | Flexible ducts, couplings and interfaces |
| Bellows & Boots | Repeated-flex protective components |
| Steering & Suspension Boots | Dust boots and flexible protective parts |
| Washer Tubing | Flexible automotive tubing |
| Plugs & Grommets | Protective and sealing components |
| Diaphragms | Cyclic flexing applications |
| Appliance Components | Flexible molded and extruded parts |
| Electrical Components | Protective and insulating elastomeric parts |
| Outdoor Profiles | Weather-resistant seals and extrusions |
| Consumer Products | Flexible housings, grips and resilient components |
Because the grade is firmer than 101-64, it is especially useful when the part must hold shape more strongly while still behaving as an elastomer.
Typical Properties of Santoprene 101-73
Physical Properties
| Property | Typical Value | Test Method |
|---|---|---|
| Density | 970 kg/m³ / 0.970 g/cm³ | ISO 1183 |
| Shore A Hardness, 15 s | 78 | ISO 48-4 / ISO 868 |
| Resin Identification | TPV | ISO 1043 |
| Part Marking Code | >TPV< | ISO 11469 |
| Color | Black | Manufacturer information |
| Product Form | Pellets / Granules | Manufacturer information |
The density below 1.0 g/cm³ is typical of a polyolefin-based Santoprene TPV and can contribute to weight reduction versus denser elastomer systems.
Mechanical Properties
| Property | Typical Value | Test Method |
|---|---|---|
| Tensile Stress at 100% Elongation | 3.44 MPa | ISO 527-1/-2 or ISO 37 |
| Tensile Stress at Break | 7.98 MPa | ISO 527-1/-2 or ISO 37 |
| Elongation at Break | 478% | ISO 527-1/-2 or ISO 37 |
| Shear Modulus | 11.1 MPa | ISO 6721 |
| Tear Strength | 25 kN/m | ISO 34-1 |
| Brittleness Temperature | -60°C | ASTM D746 |
| Low-Temperature Brittleness | -60°C | ISO 812 |
| Compression Set, 70°C / 24 h | 27% | ISO 815 |
| Compression Set, 125°C / 70 h | 41% | ISO 815 |
The mechanical profile shows why Santoprene 101-73 is frequently selected when a customer needs more hardness and strength without sacrificing high elongation.
Thermal Properties
| Property | Typical Value | Test Method |
|---|---|---|
| Continuous Upper Temperature Resistance, 1000 h | 135°C | SAE J2236 |
| RTI Electrical, 1.5 mm | 90°C | UL 746B |
| RTI Electrical, 3.0 mm | 90°C | UL 746B |
| RTI Strength, 1.5 mm | 90°C | UL 746B |
| RTI Strength, 3.0 mm | 95°C | UL 746B |
These values support long-term use in automotive and industrial applications where moderate elevated-temperature exposure is expected.
Electrical Properties
| Property | Typical Value | Test Method |
|---|---|---|
| Relative Permittivity @ 60 Hz | 2.5 | IEC 62631-2-1 |
| Electric Strength, Short Time, 2 mm | 27 kV/mm | ASTM D149 |
| Arc Resistance Performance Level | PLC 6 | UL 746B |
| High-Amperage Arc Ignition, 1.5 mm | PLC 0 | UL 746A |
These values provide useful design context for electrical housings, protective components and insulating elastomeric parts.
Flammability & Application Suitability
| Property | Typical Value / Rating | Standard |
|---|---|---|
| Burning Behavior @ 1.5 mm | HB | IEC 60695-11-10 / UL 94 |
| Burning Behavior @ 1.0 mm | HB | IEC 60695-11-10 / UL 94 |
| UL Recognition | Yes | UL 94 |
| Hot Wire Ignition @ 1.5 mm | PLC 3 | UL 746A |
| Hot Wire Ignition @ 3.0 mm | PLC 3 | UL 746A |
| Detergent Resistance | f3 | UL 749 |
| Detergent Resistance | f4 | UL 2157 |
| Outdoor Suitability | f1 | UL 746C |
The grade is not a dedicated flame-retardant TPV. Its strength lies in general-purpose elastomeric performance, outdoor durability and broad application suitability.
Automotive OEM References for Santoprene 101-73
Current Celanese-derived material data lists the following automotive references:
| OEM | Specification / Reference |
|---|---|
| BMW | GS93042 |
| Ford | WSD-M2D380-A1 |
| General Motors | GMW15813P-TPV-(EPDM+PP)-Type 6 |
| Hyundai | MS220-05 Type C |
| Hyundai | MS220-31 Type A2 |
| MAN | M 3236 A7 |
| Mercedes-Benz | DBL 5562 |
| Renault | FRM 18-27-021 / special part approval context |
| Stellantis | 55248_02 EMP90 and related references |
| Stellantis | B63 0300 / TPV1hose-125 context |
| Volkswagen Group | VW 50123 |
These references are especially useful when evaluating Santoprene 101-73 for automotive seals, under-hood parts, air-management components and flexible hoses.
Why Choose Santoprene 101-73?
The main reason to choose Santoprene 101-73 is its position between softer TPV grades and much harder elastomeric materials.
At Shore A 78, the material is firm enough to provide stronger geometric support than 60A or 70A grades.
At the same time, its elongation remains approximately 478%, so the grade is still highly flexible.
The higher tensile stress at break and 25 kN/m tear strength make the material attractive for parts with thin sections, clips, lips, edges or repeated mechanical loading.
Excellent flex-fatigue resistance is important for bellows, boots, ducts and diaphragms that repeatedly move during operation.
Excellent ozone resistance supports under-hood, outdoor and weather-exposed applications.
The -60°C brittleness temperature supports use in cold climates and low-temperature automotive service.
Compression-set performance is also suitable for many static and dynamic sealing applications.
Thermoplastic processability provides another advantage over conventional vulcanized rubber. The material can be molded or extruded without a separate cure cycle.
Celanese also lists blow molding, thermoforming and vacuum forming for this grade, providing additional design flexibility.
For customers who need a black 78A TPV with strong mechanical properties, broad processing capability and multiple automotive references, Santoprene 101-73 is a core grade to evaluate.
Processing Guidelines for Santoprene 101-73
Santoprene 101-73 can be processed by:
- Injection molding
- Multi-injection molding
- Extrusion
- Profile extrusion
- Sheet extrusion
- Coextrusion
- Blow molding
- Extrusion blow molding
- Injection blow molding
- Thermoforming
- Vacuum forming
Current Grade-Specific Injection Conditions
| Processing Parameter | Celanese Guidance |
|---|---|
| Drying Temperature | 82°C |
| Drying Time | 3 hours in a dehumidified dryer |
| Processing Moisture Content | ≤0.08% |
| Maximum Regrind Level | 20% |
| Optimum Melt Temperature | 215°C |
| Minimum Melt Temperature | 165°C |
| Maximum Melt Temperature | 265°C |
| Optimum Mold Temperature | 50°C |
| Minimum Mold Temperature | 20°C |
| Maximum Mold Temperature | 80°C |
| Back Pressure | 0.517 MPa |
| Ejection Temperature | 94°C |
Current Celanese data provides an unusually broad grade-specific injection window of 165–265°C, with an optimum melt temperature around 215°C.
For routine production, processors should still optimize conditions around actual part geometry, gate size, cycle time and surface requirements rather than automatically operating at the extremes of the published range.
Extrusion Conditions
| Processing Parameter | Celanese Guidance |
|---|---|
| Drying Temperature | 82°C |
| Drying Time | 3 hours |
| Melt Temperature Reference | 202°C |
Celanese also gives a broader Santoprene TPV processing note of approximately 175–230°C and recommends desiccant drying for around 3 hours at 80°C.
Shear-Dependent Flow
Santoprene TPV is strongly shear dependent.
As shear rate increases, apparent melt viscosity decreases. This means that screw speed, gate design, injection speed and extrusion die geometry can influence flow more strongly than temperature alone.
Processors should evaluate:
- Screw speed
- Injection speed
- Back pressure
- Gate size
- Venting
- Melt temperature
- Mold temperature
- Cooling time
- Die design
- Draw-down
- Surface finish
Material Compatibility
Celanese states that Santoprene TPV is incompatible with acetal (POM) and PVC.
Equipment should be thoroughly purged when changing between these materials and Santoprene 101-73.
Santoprene 101-73 vs. Santoprene 101-64
| Feature | Santoprene 101-73 | Santoprene 101-64 |
|---|---|---|
| Material Family | TPV | TPV |
| Color | Black | Black |
| Product Positioning | General purpose | General purpose |
| Shore A Hardness | 78 | 70 |
| Elongation at Break | 478% | Approx. 454% |
| Tensile Stress at Break | 7.98 MPa | Approx. 6.5 MPa |
| Tensile Stress @ 100% Elongation | 3.44 MPa | Approx. 2.8 MPa |
| Tear Strength | 25 kN/m | Approx. 23 kN/m |
| Compression Set, 70°C / 24 h | 27% | Approx. 25% |
| Brittleness Temperature | -60°C | -60°C |
| Main Selection Difference | Firmer, stronger, higher tear resistance | Softer and more compliant |
Choose Santoprene 101-73 when greater hardness, tensile strength and tear resistance are required.
Choose Santoprene 101-64 when a softer 70A general-purpose TPV provides sufficient support.
Related Products
Santoprene 101-64 – Black general-purpose 70 Shore A TPV for softer and more compliant elastomeric applications.
Santoprene 101-80 – Black general-purpose higher-hardness TPV for applications requiring a firmer elastomeric response.
Santoprene 201-73 – Natural-color general-purpose TPV with approximately Shore A 78 hardness.
View More TPV Thermoplastic Vulcanizates →
Technical Documents for Santoprene 101-73
| Document Type | Description |
|---|---|
| TDS | Current Celanese physical, mechanical, thermal, electrical and processing data |
| SDS | Safety Data Sheet |
| UL Information | QMFZ2.E80017 / QMFZ8.E80017 recognition |
| Automotive Specification Information | OEM references including Ford, GM, Hyundai, Mercedes-Benz and VW |
| Santoprene Product Finder | Celanese grade comparison and positioning |
| Processing Guide | Injection molding, extrusion, blow molding and related guidance |
| COA | Batch-specific quality information where available |
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FAQ About Santoprene 101-73
Q1: What is Santoprene 101-73?
Santoprene 101-73 is a black general-purpose TPV from Celanese with approximately Shore A 78 hardness, high elongation, excellent flex-fatigue resistance and excellent ozone resistance.
Q2: What is the hardness of Santoprene 101-73?
The current Celanese value is approximately Shore A 78.
Q3: What is the elongation at break?
Current grade data lists approximately 478% elongation at break.
Q4: What is the tensile stress at break?
The current tensile stress at break is approximately 7.98 MPa.
Q5: What is the tear strength?
Current Celanese data lists approximately 25 kN/m.
Q6: How does Santoprene 101-73 perform at low temperature?
The current brittleness temperature is approximately -60°C.
Q7: Is Santoprene 101-73 suitable for automotive applications?
Yes. Current material data lists references from BMW, Ford, General Motors, Hyundai, MAN, Mercedes-Benz, Renault, Stellantis and Volkswagen Group.
Q8: Can Santoprene 101-73 be injection molded and extruded?
Yes. The grade can be injection molded, extruded, blow molded, thermoformed and vacuum formed, among other processes.
Q9: What melt temperature is recommended?
Current grade-specific injection data lists an optimum melt temperature of approximately 215°C, with a published range of approximately 165–265°C. Extrusion data gives a melt-temperature reference around 202°C.
Q10: What is the difference between Santoprene 101-73 and 101-64?
Both are black general-purpose TPV grades. 101-73 is harder at Shore A 78 and provides higher tensile and tear strength, while 101-64 is softer at Shore A 70 and offers greater compliance.
Request Santoprene 101-73 Price & Technical Support
For pricing, availability, technical documents or application support for Santoprene 101-73, please provide:
- Required quantity
- Destination country or port
- Automotive, industrial, appliance or consumer application
- Seal, gasket, boot, hose, profile or molded-part design
- Required Shore hardness
- Continuous and peak operating temperature
- Minimum service temperature
- Compression-set requirement
- Chemical or fluid exposure
- Outdoor / ozone exposure
- Injection-molding, extrusion, blow-molding or thermoforming process
- OEM specification requirement
- UL documentation requirement
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- Sample requirement, if applicable
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