描述
Santoprene 8201-80 is a natural, colorable thermoplastic vulcanizate from Celanese designed for applications that need a firmer elastomeric response without losing high flexibility.
At approximately 85 Shore A, it sits in the higher-hardness range of the 8201 enhanced-colorability family.
What makes this grade particularly interesting is that the higher hardness does not come at the expense of elongation. Santoprene 8201-80 still provides approximately 630% elongation at break, giving designers a combination of:
- Firm surface response
- High deformation capability
- Good tensile strength
- Custom color flexibility
- Broad thermoplastic processing options
Current Celanese Product Finder data lists:
- 85 Shore A hardness
- Natural appearance
- 630% elongation
- 9.8 MPa tensile stress at break
- 4.2 MPa stress at 100% elongation
- 35% compression set
- General-purpose extrusion and molding
- Enhanced colorability
This makes Santoprene 8201-80 useful where the component needs to feel noticeably firmer than very soft TPV grades but still remain elastomeric.
It is especially relevant to:
- Flexible technical housings
- Industrial seals
- Consumer products
- Appliance components
- Molded grips
- Extruded profiles
- Cable accessories
- Protective flexible parts
For more TPV products, visit our TPV Thermoplastic Vulcanizates Product Category →.
For the current Santoprene portfolio, see the Official Celanese Santoprene & Geolast Product Finder →.
Engineering Highlights of Santoprene 8201-80
| Engineering Characteristic | Why It Matters |
|---|---|
| 85 Shore A Hardness | Delivers a firmer elastomeric feel for technical parts |
| Natural / Colorable | Allows customized visible components |
| 630% Elongation | Retains substantial flexibility despite high hardness |
| 9.8 MPa Tensile Strength | Supports mechanically demanding flexible parts |
| 4.2 MPa Stress at 100% Elongation | Provides greater resistance to deformation |
| Low-Temperature Flexibility | Brittleness temperature around -63°C |
| Excellent Ozone Resistance | Supports environmental exposure |
| Excellent Flex-Fatigue Resistance | Useful in repeatedly flexed components |
| Broad Processing Range | Supports molding, extrusion and blow molding |
| Shear-Thinning Flow | Flow improves significantly as shear increases |
| Colorability | Suitable for consumer and visible industrial parts |
| Thermoplastic Reprocessability | Supports manufacturing-stream scrap recovery |
Where Santoprene 8201-80 Fits Best
Santoprene 8201-80 is particularly useful where the application needs more support and shape retention than a soft TPV, while still needing elastomeric deformation.
Typical use areas include:
| Market / Component | Application Value |
|---|---|
| Appliance Parts | Flexible but dimensionally supportive components |
| Consumer Products | Colored flexible technical parts |
| Seals & Gaskets | Firm elastomeric sealing |
| Protective Housings | Flexible impact-contact components |
| Cable Accessories | Flexible insulation and strain-relief parts |
| Industrial Components | High-flex mechanical interfaces |
| Profiles | Continuous flexible sections |
| Grips | Firm tactile surfaces |
| Blow-Molded Parts | Flexible hollow components |
| Sheet Products | Flexible TPV sheet |
| Technical Covers | Protective flexible skins or covers |
| Multi-Material Components | Selected multi-shot designs |
The grade is particularly attractive where a natural material is needed because black TPV would limit color matching.
Typical Properties of Santoprene 8201-80
Physical Properties
| Property | Typical Value | Test Method |
|---|---|---|
| Density | 0.950 g/cm³ | ISO 1183 |
| Shore A Hardness, 15 s | 85 | ISO 48-4 / ISO 868 |
| Appearance | Natural | Manufacturer Information |
| Material Family | TPV / TPE-V | Manufacturer Information |
| Part Marking | >TPV< | ISO 11469 |
| Product Form | Pellets | Manufacturer Information |
The 80 in the model designation is not the current measured hardness. Published grade data gives 85 Shore A.
Mechanical Properties
| Property | Typical Value | Test Method |
|---|---|---|
| Tensile Stress at 100% Elongation | 4.2 MPa | ISO 37 |
| Tensile Stress at Break | 9.8 MPa | ISO 527-1/-2 or ISO 37 |
| Elongation at Break | 630% | ISO 527-1/-2 or ISO 37 |
| Compression Set, 70°C / 24 h | 35% | ISO 815 |
| Compression Set, 125°C / 70 h | 69% | ISO 815 |
| Shore A Hardness | 85 | ISO 868 |
The combination of 9.8 MPa tensile strength and 630% elongation gives Santoprene 8201-80 a useful balance of strength and deformation capability.
Mold Shrinkage
Santoprene 8201-80 has published mold-shrinkage data:
| Direction | Typical Shrinkage |
|---|---|
| Parallel to Flow | 2.4% |
| Normal / Transverse | 1.1% |
These values are useful for mold-design and dimensional planning.
Because shrinkage is directional, mold designers should consider:
- Flow direction
- Gate position
- Part thickness
- Geometry
- Cooling rate
This is especially important for long flexible components and parts where dimensional consistency matters.
High Elongation at Higher Hardness
One feature that makes Santoprene 8201-80 particularly interesting is the coexistence of:
85 Shore A hardness + 630% elongation
Many higher-hardness elastomers become noticeably less extensible.
Santoprene 8201-80 retains considerable stretch capability, which can be useful for components that need to be:
- Stretched during installation
- Pulled over another component
- Deformed repeatedly
- Bent around corners
- Used in snap-over geometries
- Subjected to cyclic movement
This makes it useful for technical designs that need both firmness and elastic movement.
Low-Temperature Performance
Published brittleness temperature is approximately:
-63°C
This indicates good low-temperature flexibility relative to many conventional rigid polymers.
Applications may include:
- Outdoor equipment
- Cold-storage products
- Automotive components
- Industrial seals
- Winter-use consumer products
The brittleness temperature is a laboratory property and should not be treated as the normal continuous-use minimum temperature.
Heat Aging
Santoprene 8201-80 also has published heat-aging performance after:
150°C for 168 hours
Typical changes include:
| Property | Typical Change |
|---|---|
| Tensile Strength | -6% |
| Elongation at Break | -19% |
| Shore A Hardness | +1 point |
| Mass | -8% |
This data indicates relatively limited change in tensile strength and hardness after the specified test condition.
It should not be interpreted as a universal 150°C continuous operating-temperature rating.
Compression Set
Compression-set performance helps indicate how much permanent deformation remains after the material is compressed for a defined time and temperature.
Santoprene 8201-80 provides:
- 35% at 70°C / 24 h
- 69% at 125°C / 70 h
The room-to-moderate-temperature result makes the material relevant to:
- Flexible gaskets
- Housing seals
- Interface pads
- Protective sealing components
For demanding high-temperature static seals, designers should evaluate the 125°C result carefully against the application’s sealing-force requirements.
Ozone & Environmental Resistance
Santoprene TPV materials are widely used where conventional elastomeric parts require resistance to atmospheric degradation.
Santoprene 8201-80 is suitable for applications requiring:
- Ozone resistance
- Weather resistance
- Repeated flexing
- Long-term environmental exposure
This makes it useful for seals and flexible components installed in:
- Appliances
- Industrial equipment
- Outdoor consumer products
- Automotive systems
Chemical Resistance
Santoprene 8201-80 provides useful resistance to many common fluid environments.
Potential exposure categories include:
- Water
- Detergents
- Aqueous solutions
- Dilute acids
- Dilute bases
- Selected oils
- Cleaning chemicals
Compatibility should always be evaluated using the exact chemical concentration, temperature and exposure duration.
Electrical & Insulation Applications
The grade also has published electrical-property data, making it relevant to selected flexible electrical and cable components.
Typical application areas include:
- Strain reliefs
- Cable protection
- Flexible insulating parts
- Electrical housings
- Protective interfaces
The material should not, however, be described as a flame-retardant grade.
Flammability
Published grade data gives:
| Thickness | UL 94 Rating |
|---|---|
| 1.1 mm | HB |
| 1.6 mm | HB |
| 3.0 mm | HB |
Santoprene 8201-80 is therefore a UL 94 HB general-purpose TPV, not a V-0 flame-retardant grade.
Relative Temperature Index
Published electrical data includes:
| Property | Typical Value |
|---|---|
| RTI Electrical, 1.5 mm | 100°C |
| RTI Electrical, 3.0 mm | 100°C |
| RTI Mechanical Strength, 1.5 mm | 90°C |
| RTI Mechanical Strength, 3.0 mm | 95°C |
These values can help when evaluating the material for electrical or technical parts.
Why Santoprene 8201-80 Is Useful for Product Designers
Santoprene 8201-80 offers a useful combination for designers who want a firm but still highly flexible TPV.
Its strongest design advantages are:
- 85A hardness
- 630% elongation
- 9.8 MPa tensile strength
- Natural colorability
- Broad manufacturing options
- Low-temperature flexibility
- Good environmental durability
- Good flex-fatigue resistance
- Thermoplastic processing
The grade can therefore serve as a flexible engineering material rather than only as a conventional seal compound.
Processing Santoprene 8201-80
Santoprene 8201-80 supports a wide range of processes:
- Injection Molding
- Multi-Injection Molding
- Extrusion
- Profile Extrusion
- Sheet Extrusion
- Coextrusion
- Blow Molding
- Extrusion Blow Molding
- Injection Blow Molding
- Thermoforming
This broad processing capability is one of its strongest advantages.
Injection Molding Settings
| Processing Parameter | Typical Range |
|---|---|
| Maximum Moisture | 0.08% |
| Maximum Regrind | 20% |
| Rear Temperature | 185–199°C |
| Middle Temperature | 191–204°C |
| Front Temperature | 191–204°C |
| Nozzle Temperature | 199–216°C |
| Processing Melt Temperature | 199–216°C |
| Mold Temperature | 24–52°C |
| Injection Rate | Fast |
| Back Pressure | 0.345–0.689 MPa |
| Screw Speed | 100–200 rpm |
| Clamp Pressure | 41–69 MPa |
These grade-specific values provide a useful starting point for machine trials.
Screw & Mold Design
Typical screw recommendations include:
| Parameter | Recommended Range |
|---|---|
| Screw L/D Ratio | 16:1–20:1 |
| Compression Ratio | 2.0:1–2.5:1 |
| Vent Depth | Approx. 0.025 mm |
Good venting helps reduce:
- Burn marks
- Short shots
- Surface defects
Fast injection is typically preferred because TPV flow improves with shear.
Shear-Thinning Behavior
Santoprene 8201-80 is strongly shear dependent.
As shear rate rises, apparent viscosity falls.
This means processors can often improve filling by adjusting:
- Injection speed
- Screw speed
- Gate size
- Runner geometry
rather than simply increasing temperature.
This is useful for:
- Thin ribs
- Flexible sealing lips
- Long flow paths
- Complex molded features
Extrusion Processing
Santoprene 8201-80 is also suitable for extrusion.
Typical extrusion applications include:
- Flexible profiles
- Sealing sections
- Protective strips
- Sheet
- Multi-material profiles
Important process variables include:
- Melt temperature
- Die temperature
- Screw speed
- Melt pressure
- Cooling
- Puller speed
- Profile support
The final settings should be optimized for profile geometry and surface quality.
Blow Molding Capability
Santoprene 8201-80 also supports:
- Blow molding
- Extrusion blow molding
- Injection blow molding
This allows the material to be used for flexible hollow components where rigid polymers may not provide sufficient compliance.
Color Matching
Because Santoprene 8201-80 is Natural, it is especially useful for appearance-sensitive applications.
Typical color directions include:
- White
- Gray
- Red
- Blue
- Green
- Beige
- Brand-specific colors
For accurate color matching, use a compatible masterbatch and verify:
- Dispersion
- Surface finish
- Mechanical-property retention
- UV stability
- Thermal stability
Material Compatibility
Santoprene TPV is incompatible with:
- POM / Acetal
- PVC
Processing equipment should be thoroughly purged when changing between these polymers and Santoprene 8201-80.
Regrind & Manufacturing Scrap
Published processing guidance permits approximately:
20% maximum regrind
as a starting reference.
Potential reusable clean scrap includes:
- Sprues
- Runners
- Start-up material
- Extrusion trim
- Selected rejected parts
For visible colored parts, regrind level should also be controlled to maintain color consistency and surface appearance.
Related Products
We supply Santoprene TPV materials for different hardness, color, processing and engineering requirements.
Typical product families include:
- Santoprene 8201 Series
- Santoprene Enhanced Colorability Grades
- Santoprene Natural TPV
- Santoprene general-purpose TPV
- Santoprene molding grades
- Santoprene extrusion grades
- Santoprene blow-molding grades
- Santoprene sealing grades
- Santoprene consumer-product TPV
View More TPV Thermoplastic Vulcanizates →
Technical Documents for Santoprene 8201-80
| Document Type | Description |
|---|---|
| TDS | Physical, mechanical and processing properties |
| SDS | Safety Data Sheet |
| Injection Molding Guide | Processing and mold-design guidance |
| Extrusion Guide | Profile and sheet extrusion information |
| Electrical Data | RTI and UL-related information |
| Coloring Information | Natural TPV pigmentation guidance |
| Chemical Resistance Data | Application-specific compatibility information |
| COA | Batch-specific quality information where available |
Need technical documents for Santoprene 8201-80?
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FAQ About Santoprene 8201-80
Q1: What is Santoprene 8201-80?
Santoprene 8201-80 is a natural, colorable 85 Shore A TPV from Celanese designed for general-purpose molding and extrusion.
Q2: What is the hardness of Santoprene 8201-80?
The published typical value is approximately 85 Shore A.
Q3: Is Santoprene 8201-80 exactly 80 Shore A?
No. The model number contains 80, while the measured typical hardness is approximately 85 Shore A.
Q4: What is the density?
The typical density is approximately 0.950 g/cm³.
Q5: What is the tensile strength?
Typical tensile stress at break is approximately 9.8 MPa.
Q6: What is the elongation at break?
Typical elongation at break is approximately 630%.
Q7: What is the stress at 100% elongation?
The typical value is approximately 4.2 MPa.
Q8: What is the compression set?
Published values include approximately 35% at 70°C / 24 h and 69% at 125°C / 70 h.
Q9: Is Santoprene 8201-80 colorable?
Yes. It belongs to Celanese’s Enhanced Colorability family and is supplied in Natural form.
Q10: Is Santoprene 8201-80 suitable for low-temperature applications?
It has a published brittleness temperature of approximately -63°C, indicating good low-temperature flexibility.
Q11: Can Santoprene 8201-80 be injection molded?
Yes. Injection molding and multi-injection molding are supported.
Q12: Can Santoprene 8201-80 be extruded?
Yes. Profile extrusion, sheet extrusion and general extrusion are supported.
Q13: Can Santoprene 8201-80 be blow molded?
Yes. Blow molding, extrusion blow molding and injection blow molding are supported.
Q14: Is Santoprene 8201-80 flame retardant?
No. Published data gives UL 94 HB, so it should not be marketed as a V-0 flame-retardant grade.
Q15: Does Santoprene 8201-80 need drying?
It is generally considered low-moisture-sensitive, but current processing guidance still specifies controlling moisture to approximately ≤0.08% for consistent molding.
Q16: What is the recommended injection-molding temperature?
A practical published melt-temperature range is approximately 199–216°C.
Request Santoprene 8201-80 Price & Technical Support
For pricing, availability or technical support for Santoprene 8201-80, please provide:
- Required quantity
- Destination country or port
- Application
- Required hardness
- Required color
- Injection / extrusion / blow-molding process
- Part dimensions
- Service temperature
- Low-temperature requirement
- Chemical-contact environment
- TDS / SDS requirement
- COA requirement
- Sample requirement, if applicable
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