描述
Santoprene 271-87 is a hard, natural and colorable specialty thermoplastic vulcanizate from Celanese developed for selected non-fatty food-contact and food-equipment applications.
The grade combines the elastic behavior of a vulcanized rubber with conventional thermoplastic processing. It can be processed by injection molding, extrusion, blow molding, thermoforming and vacuum forming, making it suitable for seals, gaskets, closures, tubing and molded appliance components.
Celanese’s current Product Finder lists Santoprene 271-87 at approximately 93 Shore A, placing it at the harder end of the 271 food-contact family. Despite this relatively high hardness, the material retains very high elongation.
Current typical values include:
- 580% elongation at break
- 17.6 MPa tensile stress at break
- 7.1 MPa tensile stress at 100% elongation
- 36% compression set at 70°C reference condition
The latest Celanese Materials Database also lists approximately:
- 0.960 g/cm³ density
- -54°C brittleness temperature
- 36% compression set at 70°C / 24 h
- 44% compression set at 125°C / 70 h
A major reason to select Santoprene 271-87 is its food-contact positioning. Celanese describes the grade as designed for non-fatty food-contact applications and states that it can, in principle, be used in U.S. food-contact applications under applicable FDA requirements, although migration or use limitations may apply.
Santoprene 271-87 is also certified to NSF/ANSI Standard 51 – Food Equipment Materials. NSF’s current official listing remains active as of September 17, 2026.
For more TPV products, visit our TPV Thermoplastic Vulcanizates Product Category →.
For the current Santoprene portfolio, see the Official Celanese Santoprene & Geolast Product Finder →.
Key Features of Santoprene 271-87
| Feature | Engineering Benefit |
|---|---|
| 93 Shore A Hardness | Provides a very firm elastomeric response |
| FDA Food-Contact Positioning | Supports selected U.S. non-fatty food-contact applications |
| NSF/ANSI 51 Certified | Supports food-equipment material applications |
| 580% Elongation at Break | Maintains very high deformation capability |
| 17.6 MPa Tensile Stress at Break | Provides strong mechanical performance |
| 7.1 MPa Stress at 100% Elongation | Provides high resistance to deformation |
| 36% Compression Set @ 70°C / 24 h | Provides published sealing-recovery performance |
| -54°C Brittleness Temperature | Supports low-temperature flexibility |
| Excellent Flex-Fatigue Resistance | Suitable for repeatedly flexed components |
| Natural / Colorable | Supports customized colors |
| Injection Moldable | Suitable for molded food-equipment components |
| Extrudable | Suitable for profiles and selected tubing |
| Blow Moldable | Supports selected hollow parts |
| Thermoformable / Vacuum Formable | Broadens manufacturing options |
| Polyolefin Based | Combines elastomeric performance with thermoplastic processing |
The strongest reason to select Santoprene 271-87 is its combination of 93A hardness, very high tensile strength, 580% elongation and food-equipment regulatory positioning.
Typical Applications for Santoprene 271-87
Santoprene 271-87 is especially useful for food-equipment and consumer applications that require a relatively hard elastomer while still needing flexibility.
| Application Area | Typical Use |
|---|---|
| Food Equipment Seals | Firm flexible sealing components |
| Gaskets | Food-zone and appliance sealing |
| Closures | Flexible but dimensionally stable closures |
| Tubing / Hose Components | Selected non-fatty food-contact applications |
| Food Containers | Seals and flexible interfaces |
| Kitchenware | Flexible technical components and grips |
| Flexible Grips | Firm ergonomic gripping surfaces |
| Filters | Sealing and support components |
| Small Appliances | Food-contact seals and flexible molded parts |
| White Goods | Appliance sealing and technical components |
| Living Hinges | Repeated-flex technical parts |
| Packaging Components | Sealing and closure applications |
Published Celanese-derived application information includes filters, flexible grips, food containers, gaskets, kitchenware, living hinges, food applications, seals, hose, white goods and small appliances.
Typical Properties of Santoprene 271-87
Physical Properties
| Property | Typical Value | Test Method |
|---|---|---|
| Density | 960 kg/m³ / 0.960 g/cm³ | ISO 1183 |
| Shore A Hardness, 15 s | 93 | ISO 48-4 / ISO 868 |
| Brittleness Temperature | -54°C | ASTM D746 |
| Low-Temperature Brittleness | -54°C | ISO 812 |
| Resin Identification | TPV | ISO 1043 |
| Part Marking Code | >TPV< | ISO 11469 |
| Product Form | Pellets / Granules | Manufacturer information |
| Appearance | Natural / Colorable | Manufacturer information |
The current Celanese Materials Database revision dated 2025-04-21 lists 0.960 g/cm³ density, 93 Shore A hardness and -54°C low-temperature brittleness.
Mechanical Properties
| Property | Typical Value | Test Method |
|---|---|---|
| Tensile Stress at 100% Elongation | 7.1 MPa | ISO 37 |
| Tensile Stress at Break | 17.6 MPa | ISO 527-1/-2 or ISO 37 |
| Elongation at Break | 580% | ISO 527-1/-2 or ISO 37 |
| Compression Set, 70°C / 24 h | 36% | ISO 815 |
| Compression Set, 125°C / 70 h | 44% | ISO 815 |
| Shore A Hardness | 93 | ISO 48-4 / ISO 868 |
For a 93 Shore A TPV, the combination of approximately 17.6 MPa tensile stress at break and 580% elongation is an important mechanical characteristic of Santoprene 271-87.
FDA Food-Contact Positioning
A key selling point of Santoprene 271-87 is its positioning for selected food-contact applications.
Celanese describes the material as designed for non-fatty food-contact applications and states that it can, in principle, be used in U.S. food-contact applications under applicable FDA requirements. Migration or use limitations may apply.
Typical applications may include:
- Food-equipment seals
- Gaskets
- Closures
- Kitchenware components
- Food containers
- Appliance components
- Flexible grips
- Selected hose or tubing components
For customer-facing SEO content, the more precise wording is:
“Suitable for selected non-fatty food-contact applications under applicable U.S. FDA requirements.”
NSF/ANSI 51 Food Equipment Certification
Santoprene 271-87 is certified under NSF/ANSI 51 – Food Equipment Materials. Celanese’s current Product Finder identifies NSF 51 food-contact status for the grade, and NSF’s official Food Equipment Materials database remains current in September 2026.
This certification is particularly relevant to applications such as:
- Commercial food equipment
- Beverage equipment
- Food-processing machinery
- Kitchen appliances
- Sealing systems
- Reusable food-equipment components
For a finished component, actual compliance should be matched to the relevant end-use conditions, food type and temperature requirements.
Low-Temperature Flexibility
Santoprene 271-87 has a published brittleness temperature of approximately -54°C.
This supports applications exposed to:
- Refrigeration
- Cold storage
- Temperature cycling
- Cold transportation
- Low-temperature start-up conditions
The grade therefore combines high room-temperature hardness with useful low-temperature flexibility.
Flex-Fatigue Resistance
Celanese specifically recommends Santoprene 271-87 for applications requiring excellent flex-fatigue resistance.
This makes the material useful for parts exposed to repeated:
- Bending
- Compression
- Flexing
- Recovery
- Opening and closing
- Mechanical movement
Typical examples include flexible grips, seals, hinges, hose components and repeatedly moved appliance parts.
Why Choose Santoprene 271-87?
The main reason to choose Santoprene 271-87 is its unusual balance between high hardness and elastomeric extensibility.
At approximately 93 Shore A, the material provides substantial mechanical support and dimensional stability.
At the same time, elongation at break remains approximately 580%.
Its typical 17.6 MPa tensile stress at break is particularly strong for a TPV in this hardness range, while approximately 7.1 MPa stress at 100% elongation gives it a firm elastic response.
The material also provides published compression-set performance of approximately 36% at 70°C / 24 h and 44% at 125°C / 70 h.
Combined with its food-contact positioning and NSF/ANSI 51 certification, these properties make Santoprene 271-87 relevant for firm seals, gaskets, closures and other food-equipment components.
For customers requiring a 93A natural/colorable TPV for non-fatty food-contact applications with NSF 51 certification, Santoprene 271-87 is an important grade to evaluate.
Processing Guidelines for Santoprene 271-87
Santoprene 271-87 is shear dependent and can be processed on conventional thermoplastic equipment by:
- Injection molding
- Extrusion
- Blow molding
- Thermoforming
- Vacuum forming
Current Grade-Specific Injection Conditions
| Processing Parameter | Celanese Guidance |
|---|---|
| Drying Recommended | Yes |
| Drying Temperature | 80°C |
| Drying Time | ≥3 hours |
| Processing Moisture Content | ≤0.08% |
| Maximum Regrind Level | 20% |
| Optimum Melt Temperature | 215°C |
| Minimum Melt Temperature | 200°C |
| Maximum Melt Temperature | 230°C |
| Optimum Mold Temperature | 30°C |
| Minimum Mold Temperature | 10°C |
| Maximum Mold Temperature | 50°C |
These values are taken from the Celanese Materials Database sheet revised April 21, 2025.
Injection Molding Notes
Santoprene TPV is shear dependent, so injection conditions should be optimized around:
- Injection speed
- Screw speed
- Holding pressure
- Back pressure
- Gate dimensions
- Runner design
- Melt temperature
- Mold temperature
- Venting
- Cooling time
For this grade, the current 215°C optimum melt temperature is a practical starting point for injection-molding trials.
Extrusion Processing
Santoprene 271-87 is suitable for extrusion and profile applications.
Processors should optimize:
- Barrel-zone temperatures
- Screw speed
- Adapter temperature
- Die temperature
- Melt pressure
- Draw-down
- Cooling
- Profile dimensions
- Surface finish
Shear-Dependent Flow
Santoprene 271-87 is specifically described as shear dependent.
As shear rate increases, apparent melt viscosity decreases, helping the material flow through injection gates and extrusion tooling.
Related Products
We supply Santoprene TPV grades for different food-contact, NSF, hardness and processing requirements.
Typical Santoprene product families include:
- Santoprene 271 Series
- Santoprene FDA food-contact grades
- Santoprene NSF 51 grades
- Santoprene food-equipment grades
- Santoprene sealing grades
- Santoprene hose and tubing grades
- Santoprene appliance grades
- Santoprene specialty TPV grades
View More TPV Thermoplastic Vulcanizates →
If you need grade-selection support, send us your required food-contact condition, hardness, service temperature and processing method.
Technical Documents for Santoprene 271-87
| Document Type | Description |
|---|---|
| TDS | Physical, mechanical and processing data |
| SDS | Safety Data Sheet |
| FDA Information | Food-contact regulatory information for applicable uses |
| NSF 51 Information | Food Equipment Materials certification |
| UL Information | QMFZ2.E80017 / QMFZ8.E80017 |
| Processing Guide | Injection molding and extrusion guidance |
| Santoprene Product Finder | Celanese TPV portfolio information |
| COA | Batch-specific quality information where available |
Need technical documents for Santoprene 271-87?
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Please state Santoprene 271-87 and whether you require TDS, SDS, FDA, NSF or other technical documentation.
FAQ About Santoprene 271-87
Q1: What is Santoprene 271-87?
Santoprene 271-87 is a hard, natural/colorable specialty TPV from Celanese developed for selected non-fatty food-contact and food-equipment applications.
Q2: What is the hardness of Santoprene 271-87?
The current typical hardness is approximately 93 Shore A.
Q3: Is Santoprene 271-87 suitable for FDA food-contact applications?
Celanese states that the material can, in principle, be used in applicable U.S. food-contact applications, with migration or use limitations potentially applying. It is specifically designed for non-fatty food contact.
Q4: Is Santoprene 271-87 NSF 51 certified?
Yes. Celanese lists the grade as NSF 51 food contact, and NSF currently maintains the Santoprene food-equipment listing.
Q5: What is the density?
The current Celanese Materials Database lists approximately 0.960 g/cm³.
Q6: What is the elongation at break?
The typical elongation at break is approximately 580%.
Q7: What is the tensile stress at break?
The typical value is approximately 17.6 MPa.
Q8: What is the tensile stress at 100% elongation?
The typical value is approximately 7.1 MPa.
Q9: What is the compression set?
Current Celanese data lists approximately 36% at 70°C / 24 h and 44% at 125°C / 70 h.
Q10: What is the low-temperature performance?
The published brittleness temperature is approximately -54°C.
Q11: Is Santoprene 271-87 suitable for repeated flexing?
Yes. Celanese specifically recommends the grade for applications requiring excellent flex-fatigue resistance.
Q12: Is Santoprene 271-87 colorable?
Yes. Celanese describes it as a hard, colorable specialty TPV, and the Product Finder lists its standard appearance as Natural.
Q13: Can Santoprene 271-87 be injection molded?
Yes. Injection molding is one of the listed processing methods.
Q14: Can Santoprene 271-87 be extruded?
Yes. Extrusion is a listed processing method, including use in profiles and continuous components.
Q15: Does Santoprene 271-87 require drying?
Yes. The current Celanese Materials Database recommends approximately 80°C for at least 3 hours in a dehumidified dryer.
Q16: What injection melt temperature is recommended?
Current Celanese guidance lists approximately 215°C optimum, with a range of approximately 200–230°C.
Request Santoprene 271-87 Price & Technical Support
For pricing, availability, technical documents or application support for Santoprene 271-87, please provide:
- Required quantity
- Destination country or port
- Food-equipment, appliance, hose, tubing or sealing application
- Required Shore hardness
- Required color
- Food-contact requirement
- NSF 51 requirement
- Maximum service temperature
- Food type or contact medium
- Injection-molding, extrusion or blow-molding process
- TDS / SDS requirement
- FDA / NSF documentation requirement
- Sample requirement, if applicable
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