描述
Santoprene 101-64 is a soft, black, versatile thermoplastic vulcanizate (TPV) from Celanese developed for general-purpose injection molding, extrusion and blow molding applications.
It belongs to Celanese’s core Santoprene 101 series, which is positioned as a general-purpose TPV family offering a high level of elastomeric performance.
The grade combines rubber-like flexibility, elastic recovery and environmental durability with the manufacturing advantages of a thermoplastic.
Celanese specifically highlights excellent flex-fatigue resistance and excellent ozone resistance for Santoprene 101-64. These properties make the grade suitable for seals, gaskets, flexible housings, bellows, air-management components, plugs, grommets, appliance parts, industrial elastomeric components and profile extrusion.
The current Shore A hardness is approximately 70, placing the material above Santoprene 101-55 in stiffness while still retaining substantial elasticity.
Current Celanese data lists approximately 450% elongation at break, 6.47 MPa tensile stress at break, 2.83 MPa tensile stress at 100% elongation and approximately 23 kN/m tear strength.
This combination provides a useful balance between flexibility and mechanical strength. The grade is firmer than a 60A TPV but remains highly extensible.
Low-temperature behavior is another important advantage. Current brittleness temperature is approximately -60°C, supporting cold-weather automotive, outdoor and industrial applications.
Compression-set performance is approximately 25% at 70°C for 24 hours and 44% at 125°C for 70 hours.
This behavior is important for seals and gaskets because the material must retain recovery after prolonged compression.
The current Celanese grade data also lists 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 use at 1.5 and 3.0 mm, 90°C for mechanical-strength use at 1.5 mm, and approximately 95°C at 3.0 mm.
The grade is UL recognized under current Celanese file references QMFZ2.E80017 and QMFZ8.E80017.
It also carries outdoor suitability f1 under UL 746C and detergent-resistance ratings of f3 under UL 749 and f4 under UL 2157.
Although Santoprene 101-64 is not a dedicated appliance detergent grade like the W255 series, these ratings broaden its suitability for demanding general-purpose applications.
The material is polyolefin based and Celanese states that it is recyclable within the manufacturing stream.
For more TPV products, visit our TPV Thermoplastic Vulcanizates Product Category →.
For the current Celanese grade portfolio, see the Official Celanese Santoprene & Geolast Product Finder →.
Key Features of Santoprene 101-64
| Feature | Engineering Benefit |
|---|---|
| Shore A 70 | Firmer sealing and structural support than softer 60A TPV grades |
| Excellent Flex-Fatigue Resistance | Supports repeated bending and cyclic deformation |
| Excellent Ozone Resistance | Useful for long-term outdoor and automotive service |
| -60°C Brittleness Temperature | Strong low-temperature performance |
| 450% Elongation at Break | Supports large deformation without brittle failure |
| 6.47 MPa Stress at Break | Higher tensile strength than softer 101-series grades |
| 23 kN/m Tear Strength | Good resistance to tearing around edges and thin sections |
| Low Compression Set | Helps maintain sealing force after prolonged compression |
| Good Chemical Resistance | Suitable for many automotive, industrial and appliance environments |
| Injection Molding + Extrusion | Supports wide manufacturing flexibility |
| Blow Molding | Adds options for hollow flexible components |
| UL Recognized | Current Celanese documentation lists E80017 |
| Outdoor Suitability f1 | Supports weather-exposed applications |
| Manufacturing-Stream Recyclability | Helps reduce controlled process scrap |
The defining value of Santoprene 101-64 is its combination of 70 Shore A hardness, strong elastomeric performance and broad processing flexibility.
Typical Applications for Santoprene 101-64
Santoprene 101-64 is a broad-use TPV suited to automotive, industrial, appliance, consumer and electrical applications.
| Application Area | Typical Use |
|---|---|
| Seals & Gaskets | Static and dynamic elastomeric sealing components |
| Automotive Air-Management Parts | Air ducts, flexible interfaces and gaskets |
| Plugs & Grommets | Automotive and industrial protective components |
| Bellows & Boots | Repeatedly flexed protective parts |
| Bumpers & Stops | Flexible damping and impact-control components |
| Tubing | Flexible technical tubing in compatible fluid environments |
| Weather-Exposed Profiles | Ozone- and outdoor-resistant sealing profiles |
| Appliance Components | Flexible molded and extruded parts |
| Electrical Components | Protective and insulating elastomeric parts |
| Consumer Products | Flexible covers, grips and resilient components |
| Blow-Molded Parts | Hollow flexible TPV components |
| Coextruded Profiles | Soft TPV sealing layer combined with compatible rigid substrates |
The grade is especially useful where a designer needs a firmer 70A black TPV with stronger tensile and tear performance than softer 101-series grades.
Typical Properties of Santoprene 101-64
Physical & Rheological Properties
| Property | Typical Value | Test Method |
|---|---|---|
| Density | 970 kg/m³ / 0.970 g/cm³ | ISO 1183 |
| Shore A Hardness, 15 s | 70 | ISO 48-4 / ISO 868 |
| Molding Shrinkage – Parallel | 3.2% | ISO 294-4 / 2577 |
| Molding Shrinkage – Normal | 0.8% | ISO 294-4 / 2577 |
| Resin Identification | TPV | ISO 1043 |
| Part Marking Code | >TPV< | ISO 11469 |
| Delivery Form | Pellets | Manufacturer information |
| Color | Black | Manufacturer information |
The shrinkage values were measured on approximately 2.0 mm thick specimens after at least 24 hours using Celanese test method TPE-X0080.
Mechanical Properties
| Property | Typical Value | Test Method |
|---|---|---|
| Tensile Stress at 100% Elongation | 2.83 MPa | ISO 37 |
| Tensile Stress at Break | 6.47 MPa | ISO 527-1/-2 or ISO 37 |
| Elongation at Break | 450% | ISO 527-1/-2 or ISO 37 |
| Tear Strength | 23 kN/m | ISO 34-1 |
| Brittleness Temperature | -60°C | ASTM D746 / ISO 812 |
| Compression Set, 70°C / 24 h | 25% | ISO 815 |
| Compression Set, 125°C / 70 h | 44% | ISO 815 |
These data show that Santoprene 101-64 is firmer and stronger than Santoprene 101-55 while retaining high elongation and excellent cold flexibility.
Thermal & Aging 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 |
| Tensile Strength Change, 150°C / 168 h | -9.4% | ISO 188 |
| Tensile Strain-at-Break Change, 150°C / 168 h | -7.7% | ISO 188 |
| Shore A Change, 150°C / 168 h | +1.3 | ISO 188 |
The relatively small property changes after 150°C heat aging demonstrate useful elevated-temperature durability for a general-purpose TPV.
Flammability & Electrical Properties
| Property | Typical Value | Test Method |
|---|---|---|
| Burning Behavior @ 1.5 mm | HB | IEC 60695-11-10 |
| Burning Behavior @ 1.0 mm | HB | IEC 60695-11-10 |
| UL Recognition | Yes | UL 94 |
| Burning Rate @ 2 mm | 23.7 mm/min | ISO 3795 / FMVSS 302 |
| Relative Permittivity @ 60 Hz | 2.5 | IEC 62631-2-1 |
| Comparative Tracking Index | PLC 0 | UL 746A |
| Arc Resistance Category | PLC 6 | UL 746B |
| High-Amperage Arc Ignition | PLC 0 | UL 746A |
The grade is not positioned as a flame-retardant TPV, but these data are useful for general electrical and technical component design.
Specific Application Suitability
| Property | Published Rating | Standard |
|---|---|---|
| Detergent Resistance | f3 | UL 749 |
| Detergent Resistance | f4 | UL 2157 |
| Outdoor Suitability | f1 | UL 746C |
These ratings add useful application context for appliance and outdoor service.
Why Choose Santoprene 101-64?
The main reason to choose Santoprene 101-64 is that it offers a firmer and stronger general-purpose TPV option while maintaining excellent elastomeric behavior.
At Shore A 70, the grade provides more support than Santoprene 101-55. This can be useful when a seal or molded component must resist deformation while still remaining flexible.
The tensile stress at break of approximately 6.47 MPa and tear strength of approximately 23 kN/m provide a stronger mechanical profile than softer grades.
At the same time, elongation remains approximately 450%, so the material can still accommodate large deformation.
Excellent flex-fatigue resistance supports parts such as bellows, boots, diaphragms and flexible air-management components that undergo repeated movement.
Ozone resistance makes the grade attractive for outdoor profiles, under-hood components and weather-exposed elastomeric parts.
The -60°C brittleness temperature helps maintain flexibility in cold climates.
Compression-set performance supports sealing applications where the material remains compressed for extended periods.
Thermoplastic processing also simplifies manufacturing compared with conventional vulcanized rubber. Injection molding, extrusion, sheet extrusion, coextrusion and blow molding are all supported.
For customers who need a black 70A TPV with broad processability and higher strength than softer general-purpose grades, Santoprene 101-64 is a core material to evaluate.
Processing Guidelines for Santoprene 101-64
Santoprene 101-64 supports:
- Injection molding
- Multi-injection molding
- Extrusion
- Sheet extrusion
- Coextrusion
- Blow molding
Current Processing Guidance
| Processing Parameter | Published Guidance |
|---|---|
| Drying Temperature | 82°C |
| Drying Time | 3 hours in a dehumidified dryer |
| Maximum Regrind Level | 20% |
| Back Pressure | 0.517 MPa |
| Ejection Temperature | 90°C |
| Extrusion Melt Temperature Reference | 196°C |
| General Santoprene TPV Processing Window | 175–230°C |
Celanese recommends desiccant drying for approximately 3 hours at 80–82°C.
The manufacturer also states that Santoprene TPV has a wide processing window of approximately 175–230°C.
Historical grade-specific injection data for 101-64 also gives a processing-melt range of approximately 193–232°C, mold temperature approximately 10–52°C, screw speed approximately 100–200 rpm, and maximum moisture approximately 0.08%.
Shear-Dependent Flow Behavior
Santoprene TPV is strongly shear dependent. Apparent melt viscosity decreases as shear rate increases.
This means processors should optimize:
- Screw speed
- Injection speed
- Gate design
- Melt temperature
- Mold temperature
- Back pressure
- Cooling time
- Venting
- Part shrinkage
For extrusion, optimize:
- Barrel-zone temperature
- Adapter temperature
- Die temperature
- Screw speed
- Melt pressure
- Draw-down
- Cooling
- Profile dimensions
- Surface finish
Material Compatibility
Celanese states that Santoprene TPV is incompatible with acetal (POM) and PVC.
Equipment should be thoroughly purged when switching between these materials and Santoprene.
Santoprene 101-64 vs. Santoprene 101-55
| Feature | Santoprene 101-64 | Santoprene 101-55 |
|---|---|---|
| Material Family | TPV | TPV |
| Color | Black | Black |
| Product Positioning | General purpose | General purpose |
| Shore A Hardness | 70 | 60 |
| Elongation at Break | 450% | 420% |
| Tensile Stress at Break | 6.47 MPa | 5.01 MPa |
| Tensile Stress @ 100% Elongation | 2.83 MPa | 1.88 MPa |
| Tear Strength | 23 kN/m | Approx. 18 kN/m |
| Compression Set, 70°C / 24 h | 25% | 23% |
| Brittleness Temperature | -60°C | -60°C |
| Main Selection Difference | Firmer, stronger and more tear resistant | Softer and more compliant |
Choose Santoprene 101-64 when the application requires greater hardness, tensile strength and tear resistance.
Choose Santoprene 101-55 when a softer, more compliant 60A TPV is preferred.
Related Products
Santoprene 101-55 – Black general-purpose 60 Shore A TPV for softer seals, gaskets and flexible molded components.
Santoprene 101-73 – Black general-purpose TPV with approximately Shore A 78 hardness for firmer elastomeric applications.
Santoprene 101-55W255 – Specialized black TPV for washing-machine and dishwasher detergent exposure with metal-catalyzed degradation stabilization.
View More TPV Thermoplastic Vulcanizates →
Technical Documents for Santoprene 101-64
| Document Type | Description |
|---|---|
| TDS | Current Celanese physical, mechanical, thermal, electrical and processing data |
| SDS | Safety Data Sheet |
| UL Information | QMFZ2.E80017 / QMFZ8.E80017 recognition |
| Santoprene Product Finder | Grade comparison and application positioning |
| Processing Guide | Injection molding, extrusion and blow-molding guidance |
| COA | Batch-specific quality information where available |
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FAQ About Santoprene 101-64
Q1: What is Santoprene 101-64?
Santoprene 101-64 is a soft black general-purpose TPV from Celanese with approximately Shore A 70 hardness. It is designed for injection molding, extrusion and blow molding.
Q2: What is the hardness of Santoprene 101-64?
The current Celanese value is approximately Shore A 70.
Q3: What is the elongation at break?
Current grade data lists approximately 450% elongation at break.
Q4: What is the tensile stress at break?
The current value is approximately 6.47 MPa.
Q5: What is the low-temperature performance?
The current brittleness temperature is approximately -60°C.
Q6: What is the compression set?
Current values are approximately 25% at 70°C / 24 h and 44% at 125°C / 70 h.
Q7: Is Santoprene 101-64 suitable for outdoor applications?
Yes. Current Celanese data lists outdoor suitability f1 under UL 746C, and the grade is specifically described as having excellent ozone resistance.
Q8: Can Santoprene 101-64 be injection molded and extruded?
Yes. Celanese lists injection molding, multi-injection molding, extrusion, sheet extrusion, coextrusion and blow molding.
Q9: What processing temperature is recommended?
Santoprene TPV has a broad processing window of approximately 175–230°C. Historical 101-64 injection guidance gives approximately 193–232°C melt temperature.
Q10: What is the difference between Santoprene 101-64 and 101-55?
Both are black general-purpose TPV grades. 101-64 is harder at Shore A 70 and provides higher tensile and tear strength, while 101-55 is softer at Shore A 60.
Request Santoprene 101-64 Price & Technical Support
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- Required quantity
- Destination country or port
- Automotive, industrial, appliance or consumer application
- Seal, gasket, profile, tube 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 or blow-molding process
- UL or OEM documentation requirement
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- Sample requirement, if applicable
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